When someone is wailing super hard on a guitar.

One might say that they are wailing harder then captain ahab, or "going ahab". In case your completely ignorant, captain ahab is from Moby Dick, and he was hunting a giant whale... or whaling, if you will.
*Kyle is playing Guitar Hero as Adam stares in awe*

Adam: "OMG!! Kyle is playing Bark at the Moon on extreme mode, he's totally going ahab!"
Kyle: "I pwn"
by Adam Zivojnovich March 9, 2006
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