Someone who starts claiming to be tough around the edges at some point as an adult, though it's not who he/she is or was as a kid.
The poser kept posing as somebody with a rough edge, even though giving intel (or counter intel) to teacher's and authority figures, and other shit that he/she did as a spy kid was closer to his/her own definition of smooth, always evading trouble for himself/herself while getting everyone else in trouble. Really, the poser's rough edge image was created as a defense to keep people from messing with him/her like they did when he/she was a kid.
by Solid Mantis August 18, 2020
Get the Posermug. Skater: u say u can skate but you can’t even do a trick like an Ollie
Poser: yea but I just started
Skater: you said that a month ago to
Poser: yea but I just started
Skater: you said that a month ago to
by MR-PoTato September 30, 2021
Get the Posermug. You can tell a poser imitating a kind hearted person from a kind hearted person, since a poser wont pose as kindhearted without also adding something about themselves being badass to their claim of being kindhearted.
The poser would pose as kindhearted when he/she wanted acceptance from the kindhearted folks, and as an asshole when he/she wanted acceptance from assholes.
by Solid Mantis August 10, 2020
Get the Posermug. 
Guy that thinks he's Leonardo Di Caprio at the bar- TIA, right my brew.
Bartender- No, not TIA, TIO. This is Omaha, I know because I am one of two black guys here. This is not Africa my man. I will not be a poser with you.
Bartender- No, not TIA, TIO. This is Omaha, I know because I am one of two black guys here. This is not Africa my man. I will not be a poser with you.
by Solid Mantis May 10, 2021
Get the Posermug. Someone from a town outside of a city that claims the city as her own to gain support/benefit from doing so, and to be inflammatory towards any people originally from the city that oppose her instead of compromise with her.
The bubbly girl was a poser that lied about every aspect of who she was and her life to make herself (her image) look put upon, like an underdog instead of a bully (since some people might unwittingly support or defend her that way, not realizing there was a reason she was an outcast).
by The Original Agahnim June 20, 2021
Get the Posermug. by kiiramber January 18, 2009
Get the posermug.