Thermos

A penis with an enormous amount of girth but of average length

Hey bro, I was beside Jeff at the urinals and I couldn’t help but notice, he has a nice thermos

by Iphistagash February 13, 2020

thermos

The most amazing invention of the 20th century.

It keeps hot things hot and cold things cold. "How do it know?"

by Murph dog and the bandits April 29, 2003

Thermos

Thermos: part of speech adj/ meaning often used to describe a person of large stature. Someone who is tall and round and looks like a thermos.

Dale:Would you look at that big man over yonder jansen.
Jansen: Oh my god that man is such a thermos.

by creep master October 28, 2009

thermos

A large phallus. has been seen roaming southern Indiana and many foreign countrys. Is gentle when aproached can be petted gently

Wow the Thermos broke my ass muscles!

by Yosemite sam May 21, 2006

thermos

See "Hammer Toe"

That Jeff is such a thermos!

by Chux December 9, 2003

Thermos

Derogatory name given to an attractive woman (hot) dressed overly conservative (all bottled up).

George: “Hey Alex, who’s the thermos?”
Alex: “Hi George, this is my girlfriend Sandra. She didn’t know I was gonna bring her here tonight, lol.”

by Goodespj February 14, 2026

Thermos Mermos

When a student of special needs brings a thermos with him to lunch. After eating the contents of the thermos, he proceeds to the restroom where he has dishwater (bad diarrhea) back into the thermos. (A funnel may be used at times dependent upon how violent the dishwater is) The thermos is later brought home to the mother where she is greeted by her sweet little boy/girl, who screams "surprise" when the thermos is opened and contents are discovered. (contents are still warm) Pissed off, the mother does a quick rinse of the thermos and repacks the same lunch in the same thermos for her special child the next day.

Now, here is where the definition gets tricky: Thermos Mermos can be used as both a verb or noun.

Utilization as a verb states that Thermos Mermos is the act of refilling a thermos with excrement (must be diarrhea) so it's still warm when brought home to mother. Note that screaming "surprise" when the mudpies are found is and added touch to Thermos Mermos and does not have to be stated in all Thermos Mermos accounts.

Usage as a noun (Person): Thermos Mermos could refer to both the "actor" (person who fills the thermos with the shit-funnel) or the finder of the excrement inside the thermos.

Usage as a noun (Thing): A thermos with volcanic shit bubbling inside.

Brian: Dude, I've gotta go drop the Cosby kids off.

Nate: Why are you bringing your thermos to the bathroom?

Brian: I'm gonna Mermos this Thermos.

Nate: THERMOS MERMOS!

by Yes its B January 5, 2010