by Only Me September 21, 2005

Asstinence= Only doing it in the bum.
If teenagers are going to have sex, they should stick to asstinence because you probably won't get preggo in the pooper.
by kgetson December 22, 2010

by Evil Bella January 06, 2004

by DallasSallad May 08, 2015

by Urrealname June 12, 2018

by Gurlplease15 January 01, 2016

The process in which a boy gets his friend to dump his gf for him via text messgae the day after they kiss.
Bob : omg , I totally got my friend to dump my gf cuz shes a biotch
Shawn : dude , thats the Asstin effect. ur gay.
Shawn : dude , thats the Asstin effect. ur gay.
by Dont worry , be happy November 01, 2009
