The megaman is when you spit on your hand and then stick it in your girl's p***y and close ur hand like a fist and start making a firing motion with your arms while going "pew!! pew!!"
Chris: DUDE! i did the "The megaman" on my girl last night!
Jon: My girlfriend loves old skool video games so i decided to do the "The megaman" on her
Chris: nice one she like it?
Jon: Hellz yeah she was sigma! She had it CUMMING. XDD