Whop
Part of speech: verb
Definition: To throw or move (something) quickly.
Part of speech: noun
Definition: A blow or strike.
Whack
Part of speech: noun
Definition: A blow, impact or slap.A share or portion.An attempt.
Part of speech: verb
Definition: To hit, slap or strike.To kill, bump off.To share or parcel out.
Example sentence: When I was 15, I went to see the Stranglers at Bath Pavilion. I saw Jean-Jacques Burnel take off his bass and whack a skinhead over the head with it because he gave a Nazi salute. I thought: 'This is brilliant!'