Top Definition
To proceed in a debate despite the fact that you can't precisely define the specifics of your side of the issue, yet feeling sure enough about it to continue.

Also, to continue to be a source of frustration to someone due to the fact that they simply cannot figure out what the problem is.
Yeah, it turns out I was right! I whailed on him.

Ha! I whailed on him! I had spyware sending a video feed of his monitor to my iPhone. Ha!

Darn! My rig is just not working, and I have no idea why. I have tried everything I can think of. This thing is whailing on me.
by sheepdog91 October 03, 2010
1 more definition
Verb, Contraction of whack and wail.
The stupid American whailed on the polite English gentleman.
by Mark May 17, 2004

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