Spank the monkey
Synonyms
jerk off, jack off, rub one out, beat off, whack off, pull off, pound off, beat the meat, have a hand party, pull the pudding, squeeze the lemon, do the hand jive, charm the snake, butter the corn, flog the log, choke the chicken, burp the worm, free Willy, date Rosy Palm and her five sisters, etc.
Unlike the limitations on similar terminology for women, there seems to be an endless list of terms for this male activity. In fact, it appears that there may be more terms for this hobby than there are for activities with a partner. Interesting, isn't it?
Special Requirements?
One male participant.