When someone wanks off your penis with the webbing of their toes.
She is a great fincher
by Finch_lord November 02, 2008
1 more definition
The art of wacking off a penis with the webbing of your toes
"Hey man, You wouldn't believe the finching that homeless guy gave me last night!, he really is a super talented fincher"
by Finch_King January 14, 2009