by natalienovak March 9, 2015

She moved out her dorm last weekend, and there is still this muffy stench in the room!
Last night I just couldn't have sex with this girl because of that muffy smell. Smelled like she went to the gym all week with the same underwear!
Last night I just couldn't have sex with this girl because of that muffy smell. Smelled like she went to the gym all week with the same underwear!
by Dementis11 September 14, 2010

A slang term for a homosexual of diminutive stature, who usually is out of shape and bald. Most muffys have what is known as a "muffin top". Can usually be found in the company of small hairy creatures known as cockmonsters.
Justin: man Hugh is turning into a muffy.
Nate: yeah I saw him driving a cockmonster around the other day.
Justin: that's all the proof I need.
snitch queer homosexual butt pirate
Nate: yeah I saw him driving a cockmonster around the other day.
Justin: that's all the proof I need.
snitch queer homosexual butt pirate
by Me72476 June 9, 2011

by Cassie Thompson September 1, 2008

The dog weighs 3 muffy.
by Pumpkin619 June 1, 2018

by Bucklet 911 May 27, 2019

When it's overly warm/hot either indoors or outside. Sometimes brought on by wearing to many layers. Can even be used in hot tub/sauna like situations when you actually knew it would be hot before you went in. Sometimes like actually being trapped inside a giant muff
Guy1:"Fookin hell it's well muffy in here - can't you open a window?"
Guy2:"I did but its muffy outside too!"
Guy1:"I think i may die from the muffyness!"
Guy2:"I did but its muffy outside too!"
Guy1:"I think i may die from the muffyness!"
by McBevan April 14, 2009
