S-eim 

Simulator - Mandeeps moms Simulator.

Microsoft Flight Simultor

Mandeeps Moms dildo, Also simulates her pleasures

S-eim by M.C.D November 18, 2003

Seim

(Pronounced :See-Im) Used commonly in the village of Strathfoyle in Londonderry, Northern Ireland, as a form of salutation.

McGinns - What's happening Seim?
Seymore - Ahh Not much Seim, just got my benfits today.

Seim by RyanChampionoftheWorld September 22, 2008

Seim

Is a kind of guy that that cares for people he is very nice and kind, loves to give advice he doesn't care about what people and is very fun to hang around and talk to...

Seim is the best......

Seim by .=/?/=='"" January 4, 2020

seimen demon 

your nice penis when you have an orgasm your seimen demon explodes

coach is going to invert my seimen demon

seimen demon by landin porson March 7, 2019

Seimming 

The process of attaching two pieces of cloth together with ejaculation fluid.

Me: *making a jacket for my jacket potato*
Roommate: dude wtf, get some pants on, I was gonna eat that potato!
Me: too late now, I'm seimming a jacket for him.

Seimming by Juicy D. Devon March 31, 2020

Seimen Magnet 

A Seimen Magnet is someone who attracts STD's at a quicker pace than the rest of those who are sexually active. You can generally recognise these types by their plasterboard makeup, low cut tops, almost invisible skirts despite the weather being a minus degree or several outside. Also see 'slut', 'sure thing' and 'how soon can I get a doctors appointment?' for more information.

"If you want to get laid, just go find a Seimen Magnet at the club. But double rubber it."

Seimen Magnet by Geektacular February 10, 2015

Séimí 

Dudes named simple are truly epic.

"Whoa, did you see what séimí did yesterday? Epic."

Séimí by The nibba April 7, 2019