The word "penis" backwards, pronounced "sin-eep".  Is often fun to use in voice recording programs.  When played backwards, this recording can scare small children.  Saying the word "sinep" three times around any woman will cause them to fall mouth-first onto your cock.
by Armand Assantes Left Ventricle June 27, 2007
 Get the sinepmug.
Get the sinepmug. a cock that is posistioned inward. most cases jutting into the man's hips. (looks like a second bellybutton)
by thomas raines April 4, 2003
 Get the sinepmug.
Get the sinepmug. Joe: I love the taste of sinep! (Estonian: Ma armastan peenise maitset; Icelandic: Ég elska bragðið af typpinu)
by DaCuteRaccoon January 18, 2022
 Get the sinepmug.
Get the sinepmug. 


