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1.
A name referencing those who "jerk" or masturbate a lot, to the extreme that they sprain their wrists while doing so.

Can also be referred to as Sir Knight Jerkalerkalot.

Used in a teasing manner, implying a sexual insult.
1. Tomas, you jerkalerkalot!
2. Wow, that's the third time this month he's sprained his wrist! Must be a jerkalerkalot.

or, alternatively,

1. He's known for jacking so much, he's even called Sir Knight Jerkalerkalot.
by the1whooalwaysknows August 06, 2012