Sen-Senpai 

Noun.
1. The seniority of all seniors
2. The highest role in a hierarchy system

Michael is the sen-senpai of slowman. He knows everything about the company.

Sen-Senpai by stupidly genius January 27, 2016

sen sen 

A brand of herbal black licorice breath freshener and throat soother, originally produced in the late 1800s for speakers and performers.

Sen Sen is very strong...

sen sen by wendy lane May 23, 2003

Sen-Fucking-Sational 

A word that only describes one man. The international sex magnet and a man in need of spot cream, GottaBeAndrew!

OMFG! The iLid video was Sen-Fucking-Sational

Sen-Fucking-Sational by Andrew Redpath April 11, 2010

friggin me sen off

Yorkshire term for female masturbation. Most commonly used in the Doncaster area

Oooooh, I wer layin in me bed last night and a wer friggin me sen off

friggin me sen off by Hoo See February 28, 2020

Wun Sen 

A phrase that Devilman (De-Velopment) uses in his freestyles. Comes from a Chinese word (煥森) which basically means nice in Chinese.

Wun sen ting got me on a matsen ting - Devilman

Wun Sen by b.dot.d January 24, 2011

Kuzu Ryu Sen 

This technique of the wordHiten Mitsurugi Ryu/word is taught before the ougi. This move involves striking the 9 vital points (Head, shoulders, wrists, both sides of the waist, between the legs, and the chest) so fast that each strike seems simultaneous. The user can do nothing to defend these strikes except to use an equal or stronger Kuzu Ryu Sen, or the wordAma Kakeru Ryu No Hirameki/word.

Hiten Mitsurugi Ryu, Kuzu Ryu Sen

Kuzu Ryu Sen by The Eternal EoN August 12, 2003

Sen 

A god.

"Do you believe in Sen?"

"All hail Sen."

Sen by rekanK April 2, 2019