This is a word that's mostly used in the town of Brackley to signify useless chatter. Particularly in respect to rounders/baseball.
The longest forum thread in the world is full of rounders twaffle.
Having stayed up late to catch this sci-fi nonsense (ie Star Wars), I can confirm this is twaffle of the highest order
A Twitter raffle
I'll run a twaffle for who's following me on the next friday!
The act of running up behind someone, reaching high between their legs (almost but not quite in the crotch seam) and slapping one's hand back and forth as if to motorboat
the upper thighs with the hand. The recipient of the twaffle is now "it" and must twaffle someone else to continue the game. Verb, origin Grafton VT Sept. 2010.
I'm going to twaffle the bride right before she gets her photo taken.
Dirty or over used vagina; usually used by women about other women
That twaffle better not come around my man
A twat waffle.
I went down to the post office today. The post master was being such a twaffle.