an extremely annoying person who is overweight and talks in a high pitched tone
Fat Alex is such a pudwhacker!
To repeatedly stroke one's pud while continuing to act in a sad mood. In other words to be poopy.
Can also be used to describe someone acting different than normal.
Person #1 - What did you do last night?
Person #2 - You know I was in a bad mood, but I still pudwhacked the shit out of myself.
Larry was acting like a little bitch in front of his girlfiend, so I gave him a hot carl and called him a pudwhacker.