Simulated Erotic Experience. In layman's terms, beating your meat. It is commonly used as a way that nerds can sound like they got laid in locker room chat. Since it is pronounced as 'sex', innocent bystanders will assume that the speaker is more manly than they would otherwise.
Chad: Hey, guys, I just had S.E.Ex. last night! It was awesome. lollollol.
Butch: Wow? Really?
Chad: Yeah dudes. She was smokin' hot. i totally pwn3'd her.
Butch: I would totally believe you if you didn't post that retarded thing on UrbanDictionary last week. Wanker.
Butch: Wow? Really?
Chad: Yeah dudes. She was smokin' hot. i totally pwn3'd her.
Butch: I would totally believe you if you didn't post that retarded thing on UrbanDictionary last week. Wanker.
by Kaleid February 7, 2010