Joe: Hey Jim, check out all of the hair on my back! Have you ever seen so much back hair??
Jim: Whoa Joe, TSIM.
Jim: Whoa Joe, TSIM.
by Dustin Pedroia May 01, 2008
A mentally unstable child who is the longest person to ever live with progeria. His real name is Justin Tsimbus, his nickames are tsim fukis, chicken little, and Turdis. Go watch Justin (tsim Fukis) by searching "tsim gay Eminem rap"
by Sully the god May 30, 2017