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2.
Useful courting maneuver used when stuck outside someone with whom you're attempting to have relations. Often found on college campuses, but can also be found in the backwoods of some eastern states esp in vicinity of Wayah Road.

Involves swerving left to right like an angry shark, waving your junk and accelerating forwards at the hole in front. Similar to an aggressive passing maneuver but with a few key differences. It can also be used to display desire, impatience or hunger.
Better be careful, Frank -- not only has that guy been standing right behind you, I think I saw him pulling an Angry Wellzy.
by Fontana Frank May 06, 2013
 
1.
Useful driving maneuver used when stuck behind slower traffic. Often found in the backwoods of some eastern states.
Involves swerving left to right like an angry shark, waving arms and accelerating rapidly at the car in front. similar to a aggressive mating call but
with a few key differences. however it could also be used to display desire, impatience or hunger.
Man, Stuck behind another Van again?! Just do a Angry Wellzy they will clear right out.
by ColinGreene May 06, 2013