Derived from one of Chris Tuckers smart come backs that he made in a movie, BTNS is an abbreviation of Bitches That Need Slappin'.
Mark:Have you met that female foreign exchange student in my Drama class?

Mike:The one who flipped out of the teacher yelling her foreign gibberish?

Mark:Lol Yeah.

Mike:I wouldn't be surprised if she got transfered out of that class.

Mark:That girl needs to apply for one of those BTNS classes.
by Bean Frizzo April 10, 2007
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Better than not. It is the required response to qgt (Quite good though).
'My mate just got shot!'

'Oh no! That's terrible'

'Quite good though!'

'Better than not'
by flandrews November 14, 2004
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Btn is short for “what you doing” in welsh. As in english you would say “wyd” this usually is used over texts messages.
Person 1 “hi btn?”
Person 2 “nm watching tv”
by Reitok June 10, 2018
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