Biography
He's a soldier; he's a real man! Just listen to all his exploits and how the very gods are afraid of him! Admire his pristine uniform and shiny medals that prove his valour! Behold the physique that has been honed over years of adventure and peril! He loves danger! He will seek out any peril to test himself against!
Just don't put him near an actual fight.
The Miles Gloriosus (pronounced "ME-lace glor-ee-OH-sys", not "MYLES GLOR-ee-oh-SUS") claims to be some sort of mighty warrior or doer of the impossible. A soldier, Great White Hunter, Gentleman Adventurer, Hunter of Monsters, Superhero or other dangerous occupations are all possible. He is full of boasts about his many adventures, making himself out to be the ultimate badass. But when real danger rears its ugly head, Miles reveals what's Beneath the Mask and proves to be a Dirty Coward, anything but what his stories make him out to be, leaving whoever was foolish enough to be taken in by them to fend for themselves.
Miles is Always Male, as women aren't usually expected to distinguish themselves in danger. This doesn't mean they wouldn't boast on how they brave through such quests, however.
The Foil of The So-Called Coward or the Cowardly Lion. Since he is invariably all talk, falling for his stories is a mark of the Naïve Newcomer. Those who are not taken in may, in peace and quiet, find him more or less amusing, which depends on his skill on storytelling, but when trouble arises, he is always The Load. May be No Hero to His Valet, Type 1 only. Often considering himself God's personal gift to women, he is frequently part of a Love Triangle, his stories making him triumphant, until danger reveals to the heroine which man really is admirable.
May be a Small Name, Big Ego, but may also be running a con and may be proud of himself for reasons other than his boasted prowess. It can be hard to tell because one of his chief traits is his utter shamelessness. No matter how clearly he was reduced to quivering terror by the merest hint of danger, as soon as the danger ends he will snap back to the boasting mode, making it hard to tell whether Believing Their Own Lies is in effect. He is incapable of realizing that people might think better of him if he says Think Nothing of It. Sympathetic examples may suffer from an Inferiority Superiority Complex, and hiding their own insecurities under a braggart façade.
Any annoying braggart may be taken for the Miles Gloriosus, which is why subverting this, having them turn out to be brave and good at fighting — or even just competent — is a surprise. (See Boisterous Bruiser for the character most likely to subvert it.) Such surprises often fall under Glory Seeker; he may also go for glory at the expense of others: Glory Hound. Similar in ego to The Fighting Narcissist, but the latter generally has the fighting ability to back it up.
Named for a stock character in ancient Roman theater: the term translates to "boasting soldier."
Particularly annoying subtrope of Fake Ultimate Hero and particularly egotistical subtrope of The Münchausen (the latter of whom can actually back it up). Inverse of the Cowardly Lion. Similar to Lord Error-Prone. If the plot ever forces him to stand and actually act like the badass he claims to be, then it's Becoming the Boast. Villainous versions may overlap with Engineered Heroics. May be inclined to say Nobody Calls Me "Chicken"!... right before saying Screw This, I'm Outta Here
Compare Smug Super, Nominal Hero, Legendary Impostor, and Phony Veteran.
Contrast Shrouded in Myth, Armchair Military, Badass on Paper and Let's Get Dangerous!. Subtrope of Paper Tiger.