whacker

whack (wæk)
—vb
1.	to strike with a sharp resounding blow
2.	informal (Brit) (usually passive) to exhaust completely
3.	informal (tr; usu foll by in or on) to put something on to or into something else with force or abandon: whack on some sunscreen
—n
4.	slang (US) (tr) to murder: if you were out of line you got whacked
5.	a sharp resounding blow or the noise made by such a blow
6.	informal a share or portion
7.	informal a try or attempt (esp in the phrase have a whack at)
8.	informal out of whack out of order; unbalanced: the whole system is out of whack
—interj
9.	an exclamation imitating the noise of a sharp resounding blow
[C18: perhaps a variant of thwack, ultimately of imitative origin]
'whacker
—n

whack

whack (sth) definition tv. to complete something easily or quickly. : If you want a pair of these, I can whack them off for you in a few minutes. tv. to cut or chop something off. : A tree branch is rubbing against the house. I guess I'll go out and whack that branch off.

whacker definition

[University of Maryland: from hacker] 1. A person, similar to a hacker, who enjoys exploring the details of programmable systems and how to stretch their capabilities. Whereas a hacker tends to produce great hacks, a whacker only ends up whacking the system or program in question. Whackers are often quite egotistical and eager to claim wizard status, regardless of the views of their peers. 2. A person who is good at programming quickly, though rather poorly and ineptly.