1whack 
/ˈwæk/ verb
whacks; whacked; whack·ing /ˈwæk/ verb 1 informal : to hit (someone or something) with great force [+ obj] ▪ She whacked the piñata with a stick. ▪ The old man lifted his cane and whacked the mugger on the head. [no obj] ▪ They were whacking through the jungle with their machetes. 2 [+ obj] US, informal : to reduce (something) by a large amount : slash
▪ Congress whacked the budget by 1.5 billion dollars. = Congress whacked 1.5 billion dollars from the budget. 3 [+ obj] US slang : to murder or kill (someone)
▪ He got whacked by mobsters.
▪ Congress whacked the budget by 1.5 billion dollars. = Congress whacked 1.5 billion dollars from the budget.
▪ He got whacked by mobsters.
