Acronym: Forced With Follow-through
Distinct from plain follow through by the attempt to maximise the farts volume. Essentially to gamble and lose with slightly higher stakes.
Hugo: "Aw, man. I FWFTed"
Gaz: "Dude, you are foul"
Tom: "That's nothing - last week he FWFTed while he was cwtching with his missus"