when you and a fellow coworker decide to take sloppy shits together side by side in the neighboring stalls. This also follows a "low five" slap at the bottom opening of the stall to signify the greatness of taking a shit while getting paid for it!
Celebratory gesture made by two people, slapping each other'slowered hands.
Opposite of "high five", but still carries the same social meaning, often sarcastic.
Hand gesture used by motorcyclists and some others in respect and acknowledgment of fellow riders. An extended left hand wave with the arm slightly below the handlebar. This is done for both safety (don't wanna take your hands too far off the bars) and discreteness (it's an "inside thing".) Most riders are very friendly this way. Others won't return the gesture if you're riding a "foreign" bike or one not of the same make as theirs. Harley riders are notorious for this and other jackassery.