by WHINDMAN January 15, 2011

The shit smear left on the back of the toilet seat. Commonly caused by explosive diarrhea or incorrectly positioning your asshole.
"At last year's company holiday party I got so drunk I accidentally left a grease shingle."
"I took this girl home from the bar last night, when I woke up she was gone...but the skank left me a grease shingle as a parting gift." #greaseshingle
"Donald Trump's hair looks like a grease shingle."
"Yo bro, quit being such a grease shingle."
"I took this girl home from the bar last night, when I woke up she was gone...but the skank left me a grease shingle as a parting gift." #greaseshingle
"Donald Trump's hair looks like a grease shingle."
"Yo bro, quit being such a grease shingle."
by M&TfromtheDeli June 28, 2016

by Zorina August 14, 2021

when one skips a few days of showering and their hair becomes greasy. if they have side bangs they will split up in chunks of shiny hair instead of having a all the hair as one
by llllllllaaaaaaaaaaaaa February 13, 2010

by SoySauce69420 April 29, 2022

by Burning blue soul March 17, 2017

Dude 1: Ross, are you eating the grease from the deep fryer and rubbing it on your belly?
Grease Monster: SO WHAT IF I AM!?!
Dude 1: You f*cking grease monster!
Grease Monster: SO WHAT IF I AM!?!
Dude 1: You f*cking grease monster!
by sotaku22 September 16, 2011
