Peato
To blow ya load, to arrive at the party early, to jump the gun, to ejaculate prematurely basically. Derives from the word 'peters' meaning to fizzle out and the word 'oh'. Usually exclaimed by the less than impressed second party.
Cheryl:"Oh yeah babe! Now put it in!"
Ben:"Huuuhhhhuuhh........
Cheryl:"Er babe.......
Ben:"Er....... i'm not really in the mood anymore."
Cheryl: "Babe...
Ben:"Yeah i peatoed..........