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2.
Sex with NO strings attached. (: You know the good kind of sex...
"so, i called sally over man, Im gunna get some puss."
"oh, you to are dating?"
"Hell no nigga. we are just fucking..."
"isnt that...slutty?"
"HA! no. Its just causal sex."
"Dude, I need a 'causal friend' like that"
"I know, its the greatest, we fuck, she leaves, and i dont have to deal with.. 'HOW DARE YOU LOOK AT ANOTHER WOMAN!'"
by Leximuthafuckin'lexingtonBITCH November 05, 2007
 
1.
sexual encounter resulting in pregnancy.
Casual sex becomes causal sex when when you reverse the s and u, or omit the c-o-n-d-o-m.
by pbaddy August 18, 2009