BTU 

British Thermal Unit

(see B.T.U.)

BRITISH THERMAL UNIT (used in propane)

BTU by some polak October 4, 2004

Btu 

Blow this up (making something popular or viral)

On a video that is usually funny

"This is such a funny video im going to btu"

Btu by anonymous December 25, 2020

BTU-saving entry/exit

Refers to a K1-saving action that you take during colder weather, and consists of rapidly opening the front door of a home/business only as far as you need to in order to quickly slither through, and hastily slapping the door shut again to minimize heat-escape.

Small barber-shop owner: Most of my customers don't seem to realize that it really costs me a pretty penny to heat my place of business... they leisurely take their sweet old time to amble in and out, and just let the door gradually close on its own. A few thoughtful/aware folks, though, do diligently employ the "BTU-saving entry/exit" procedure when passing through my door, and I really appreciate that.

BTU-saving entry/exit by QuacksO December 7, 2018

Btuh 

When you are trying to tybe bruh but you type btuh

Someone: does something stupid
His firend: Btuh

Btuh by BeanosGT January 13, 2020

btuiwer 

when a word is so badly misspelled a new word is formed

EverestwingJinn — Today at 16:41
i thnk you'er btuiwer
i think you're alright

btuiwer by JestFlyingOffATrain May 25, 2023

BTUF 

The new YOLO. Comes from Ryan Lochte's quote, "Ball till u fall."
Pronounced: Be tough.

Guy 1: Dude I forgot to study for my final.
Guy 2: BTUF.
Guy 1: Hell ya. BTUF.

BTUF by btuf August 8, 2012

BTuday 

February 10; Commemorative day marking the birth of the Queen of sass and throwing phones at walls.

Guy: Dude what's with the parade full of drunk people?

Girl: Oh it's the BTuday celebrations in full send.

BTuday by SamSepi01 February 10, 2020