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.
by Biker23 August 24, 2012

by BasketOfFish December 18, 2006

by Slow Fox August 15, 2008

by Schtuff February 17, 2018

the wiggers were high on a b-ball game today...all shittos were like high-fivin', low-fivin' eachothers!
what to say?..wiggers!..
what to say?..wiggers!..
by hytham_hammer October 29, 2006

When two motorcyclists pass each other on the road and each lowers their hand in a symbol of friendship. They do not actually touch, but it is acknowledging each other's existance on motorcycles.
Tom was driving his Harley down the road when he saw Jim comming the other way on his crotch rocket. Both riders lowered their left hands and gave the low five.
by masterfw July 02, 2009

by tramptastic June 29, 2004
