"My long time girlfriend split with me today... But her best friend went down on me. It was a semi-day."
by metalgearnoms October 24, 2011
When a device uses standard or non proprietary connections, yet makes itself proprietary by only working with certain devices. A good example of this is Astro Mixamps and Astro A50 Base Stations. Sure they'll work on PS4, Xbox One, and PC, but the specific Mixamp or Base Station for each platform is needed.
Astro Headsets are semi proprietary
by Jayrod64* December 1, 2019
A family that is similar to yours, the people in the family have no real actions to you and may not look like you, but they share similar traits.
by Missy232 February 13, 2021
mate i just backed out the biggest semi-tralier you will ever see!
Larry Bird drives Semi-trailers a lot after a big meal.
Larry Bird drives Semi-trailers a lot after a big meal.
by J. Depor December 22, 2009
by Bodil Karlsson May 17, 2021
half of a sandwich. semi-sandwiches are usually made by cutting the bread in half, then putting in the other stuff.
person1: I'm hungry but I don't think I could finish a whole sandwich. person2: You should just have a semi-sandwich.
by Jarvis123 August 25, 2009
semi-circle(n.) the part circle in the corner of the soccer field.(se-me sir-cel{with Italian accent})
by Dr. Kenneth Nillies Water May 13, 2008