look up any word, like the eiffel tower:
to be anything and everything cool or un-cool.
LaReisha: Did you get your hair done?
Shuhnayquay: Yeah. Why?
LaReisha: It's totally jasty!

by neutrality April 09, 2008
Something that is old news. Such as an old video, picture or news link posted on a forum.
SliceSlice: Hey TSR, did you hear about Dead Rising 2: Off the Record?
Maxstats: Jasty.
by Maxstats May 29, 2011
A nasty joke, probibly gossiping about someone and saying stuff behind there back
" mum you cant cook"
"sorry that was a jasty"
by corriek May 10, 2010