Show off.
To display something one possesses, such as material goods, achievements, or personal characteristics.
This usage is common in urban culture and music, especially in reggaeton and trap.
Someone who puts on a false personality, usually in an attempt to get laid, or make friends with people of a different clique. A fronter may also show things off that aren't theirs, such as their daddy's rolex, their best friend's whip, etc...
Dickhead: Did you see Sean chillin' with all those punk rock kids and listening to their music?
a favourite pair of comfortable trousers esp. tracksuit or 'tracky' bottoms, used for idling and solitary 'recreation' while at home... generally not washed from one year to the next, the frontal area builds up a delightfully pungent, and crusty residue of semen...
also affectionately known as 'fronters'
Jell0r raced home from work, removed the gimpsuit, and retrieved his spunk-fronters from their position propped up against the wall... after chipping his way into them, the spunky front caressed his loins like sandpaper on wood..