look up any word, like the eiffel tower:
 
2.
Switching orifices - without alerting your partner - while having sex doggy-style.
Listen, I know Kobe committed a Southern trespass on you but you wont get a conviction for rape just because of it, you have to say that none of the sexual acts had consent.
by The Commadore July 22, 2008
 
1.
while having sex, to change orifices without prior consent or warning.
Sheilah and I were getting it on, and she was going crazy! So I pulled A southern trespass. Man she loved it!
by matt simpson February 24, 2004
 
3.
When your fucking your woman from behind, then pull out and try to sneak your dick into her ass
I was fucking my ho' when I wanted to fuck her ass so I did a southern trespass.
by Crack Daddy Welfare April 19, 2003