The act of making a noise by hitting your abdominal muscles with your penis. For best results, one needs 1) to lie down and 2) to have a semi
Flaccid or erect penises do not work so well as the former is too soft to make a loud enough noise and the latter is less mobile.
A group of 'taffers' may be able to create beats as each taffer will usually create a noise with a slightly different pitch to that of his fellow taffers.
Mike: One knockmeans start taffing, two means stop
*knock*
*taf taf taf*
Judge of Amogustan High Court : Are you the guy that committed warcrimes in Bosnia, Iraq and Syria between 1989-1995?
taf : No
Judge of Amogustan High Court : Are you sure? I think you are taffing.
taf : No, retard, I never committed warcrimes.