A person who is obsessed with themselves and thus is a cocky piece of shit. One who arrives uninvited and has a warped perception of his or her own worth. see douchebag
You fucking Jasiak, yyou couldn't get with her!
Jasiak will you get the fuck out of my room before I give you a emeril tea set.
a gay kid who can't take a hint
wow that kid is still here after I asked him to leave, and now he is looking at Male porn, he must be a jasiak