1 definition by Martin Leggett
When your fucking a girl from behind, just as your about to cum you raise your arms in triumph and let out a terrifying shreik mimicking the prehistoric winged animal...the Pteradactyl.
Last night when I was nailing my girl, just before I came I pteradactyled her and was like "AARAAAGHHH"!
by Martin Leggett October 30, 2007