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1.
Lowering a girl/guy onto your thumb whilst supporting their weight to create maximum insertion/gratification.
"Why were you holding her up?"
"Ah she was just thumbing a lift"

"How did you get her so turned on?"
"She just thumbed a lift of me and loved it"
by Newbstar April 13, 2009

Words related to Thumbing A Lift

anal ass bum thumb thumbing