An exercise mainly done by rowers, to condition the legs (
quads, specifically). Generally conducted in sets, in the course of
the dreaded *
circuit*.
Coxwain: 121...122...123... Oh, oops. Sorry guys, I lost count.
Rowers: *groan*
Cox: Now all together, we're going to do 200
jumpies, by sets of 50: 1...2...3...
Rowers: We're gonna flip the boat on you,
coxwain... shit...