An erection in public. Something you do NOT want others to notice, thus you should quickly conceal before it's noticed. He should then proceed to get rid of it by thinking about non-sexual images.
He noticed his shame stick when she talked to him, but quickly covered it before she noticed.
by kybernz March 07, 2008
A stick of butter rolled in sugar. Sororities such as Phi Sigma Sigma often make their new initiates eat this as a right of passage, a type of hazing. Also are often eaten by the heavier sisters of the sorority.
That Phi Sig probably just ate a shame stick.
by TexasKing22 September 18, 2007