To quickly swipe one's finger up a girl's crotch to see if she's wet meaning she's interested in you. It's a quick fluff and a puff up a muff.
He couldn't tell for sure whether she was into him, so he gave her a quick swipe with the squirrelfinger to be sure.
by Agent 00Squirrelfinger October 21, 2008
Get the Squirrelfingermug.