To be willing to fucks with ( or agree to) with a person who is asking you to do something.
I'll fucks wit you- to agree to, a way to say im willing to.

Hey man you wanna go to this party im goinig to tonight?
Sure, ill fucks wit you!

Or

You wanna smoke this blunt with me?
Yeah, ill fucks wit you.
by smittyness 89 February 21, 2015
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