semi-annual

Anything semi-annual means it happens every 6 months.

Attention all customers, attention all customers. The semi-annual sale begins today, and the next one is on December 18! Buy now and get extreme price cuts!

by ToadMan.EXE September 8, 2005

semi-truck

Slang for a girl who has such a huge ass that you can't get around it.

--Damn, that girl's ass is so huge it's a wagon.

--No, man. That ass is a semi-truck.

by phoenixarising January 21, 2010

Semi-Virgin

It's indeed a weird practice. it's when girls avoid having intercourse but wud still do everything else like,oral sex and all... just to avoid popping her cherry til marriage.but what's the point at all?

lisa's husband found out that she was after all just a semi-virgin when he knew dat she gave his bestfriend a sizzling bj in the bedroom.

by Saaskii Hustler April 5, 2009

semi-poon

Semi-poon is used to describe what a retarded teenager would refer to as having a girl let him eat her out. It is synonymous with cunnilingus, and when referred to as "semi-poon", sounds much more intriguing than it actually is meant to sound.

JC: Guys, you won't believe this. Last night, I got semi-poon.

Guys: ...what the fuck is semi-poon?

JC: Well, you know...my girlfriend let me eat her out.

Guys: Oh. Um.....cool, I guess.

by 2muchdutch August 11, 2010

Semi-Boo

The name for a person who is not officially your boyfriend/girlfriend (or boo).

My semi-boo and I are going to the movies friday.

by Woupiethug April 29, 2008

semi sibling

For children growing up in spilt families, When a parent remarries and has further children they are half brothers and sister.
When the parent who has left then has children the two young half siblings are unrelated. these are semi siblings.

Your parents first spouse's children. usually the half siblings of your half siblings.

My sister's Father's daughter is my semi sister.

My Brother's mother's son is me semi brother

They are both my semi siblings

by Toyotarox October 3, 2009

Semi-Pork

its like having sex, but really short. It involves penetration, but its not really long enough to class it as actual sex. It could be caused by someone interupting, a man with very low stamina, anything...

-What happened with you and james last night?
-we got interupted so it was only a semi-pork.

by wastedcrunch June 3, 2007