The act of bitching for an incredibly protracted period of time. Usually perpetrated by a female onto her man during important televised sporting events, ie. The final four, Superbowl etc. Or possibly in public due to her perceived issues with the male taking too long of a optic moment with an attractive female. Additionally, bitch-a-cating can be induced by non performance situations such as, dirty dishes in the sink, soiled clothes on the bathroom floor, empty beer bottles in the TV room.
FML dude, the ol' ball and chain was bitch-a-cating thru the whole pay-per-view fight last night.