semi 

Not quite an erection, but getting there.

When I saw Milla Jovovich's boobies I got a semi.

semi by Germ March 15, 2003

semi 

the state of a penis which is not altogether flaccid nor erect. It will often occur at inopportune embarrasing times and will be brought on purposefully by a cunning sexy woman pretending she has no idea what she is doing.

"why are you still friends with some of your ex-boyfriends?"

"I like to keep them healthy and providing the regular semi keeps the circulatory system in check."

semi by MintyLeila June 29, 2005

semi 

the in-between state of a limp dick and a usable hard-on. can be on the way to hard, on the way back from hard, or never allowed to get more than 60% (+/-) hard.

many a young man learn to hide their semi with text books after day-dreaming in class

semi by the mac al April 12, 2006

Semi 

A bitch, a barcode boi who spends all his money on Fortnite and doesn’t have a house and is poor he has a girlfriend named fian

You’re such a barcode boi. I looked at home and got a semi.

Semi by Drugdealer12345678910 August 15, 2019

Semi 

A guy w a big dick and a big heart ❤️

Semi the guy w the big dick and the big ass heart

Semi by Ybnnasty January 19, 2020

semi 

1 -(n.) Any semi-automatic weapon; semi-shots, smg's, etc. (pronounced "seh-MEE")

2 -(n.) An 18-wheeler truck (pronounced "seh-MI")

1 - "Semi's are only half as fun as automatics."

2 - "Aparrently a semi loaded with cocaine and doritos rolled over on the freeway yesterday.

semi by Lil Dre April 18, 2006

Semi 

A small boner over something none sexually related. It will be about 50% smaller

100% on a maths test forced him to get a semi

Semi by Ben Ski Don May 3, 2010