A finger-tap-gasm is the cumgasm a young guy has when he misses taking care of his morning wood at home, so he gets on the school-bus, takes a seat in back, and finger-taps his c-spot until he creams his jeans.
When I was in high-school, sometimes I'd miss my morning jack-off session and take care of my wood by giving myself a finger-tap-gasm!
by USAF Cadet July 4, 2021