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A way of dismissing somebody because you can't be bothered to answer their statement or think that their statement was stupid.

Usually said in reply to somebody saying something unnecessary. or something to try and gain sympathy or attention.
A. I feel sick
B. Firm it init

A. Man, look at that
B. Firm it
by sumyi August 11, 2009
5 0
To take something that is hard to bear.
She just told me she's not interested.

- Mate you have to firm it.
- Mate gotta firm that shit.
- Firm it son.
by MrYeung January 24, 2014
3 0