back fingering
'ere lads nearly got this bird home last weekend, was back fingering here down an alley but she bailed on me last minute because she was taxi sharing with a mate'
the act of inserting ones fingers in a woman's vagina by reaching round and under her ass, as opposed to going in from the front
"'ere lads nearly got this bird home last weekend, was back fingering here down an alley but she bailed on me last minute because she was taxi sharing with a mate'" What is the definition of "back fingering"?