It is a "fuck" that is bound by large bodies of water. It is the sister "fuck" to the "flying fuck".

It is a noun; used when conveying how much you could care less about a particular scenario/incident/person.
Dude 1: Brah, let's play some golf

Dude 2: Bro, I couldn't give a swimming fuck about golf and it's shitty wide array of different clubs.
by Leo Pindar September 24, 2011
Get the Swimming Fuck mug.
i hav no idea im hella drunk my loves¯\_(ツ)_/¯
i mean why would someone put this in a sentence

Guy1: *shows le middle finger*
Guy2: Fuck off Jerry
Guy1: u can't drown satan he can fucking swim
by snek_in_a_fedora_with_a_bowtie September 3, 2017
Get the u can't drown satan he can fucking swim mug.