Is “Whack” a Scrabble word?
Yes
WHACK
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Whack
/wæk/
adjective
1.Egregious.
2.Bad (not good), inauthentic, of an inferior quality, contemptible, lacking integrity, lame, or strange.
“Every record they ever made was straight-up wack.”
3.Crazy, mad, insane.
noun
1.The sound of a heavy strike.
2.The strike itself.
3.The stroke itself, regardless of its successful impact.
verb
1.To hit, slap or strike.
2.To kill, bump off.
3.To share or parcel out; often with up.
“to whack the spoils of a robbery”