slackoff superstar 

Someone in the corporate world who slacks off most of the time, and whose level of productivity is seen as his/her "typical". However, once this person actually starts doing productive work, it's extremely good and effective.

Harvey Keitel was a slackoff superstar in Pulp Fiction.

slackoff superstar by man-tow-notch January 14, 2009

slack off 

to waste time

Slacking off at this time, when there's so much to do? (to slack off)

slack off by anything more November 28, 2011

smackoff 

A degenerate moron who struggles to make intelligent decisions, but inevitably always results in disaster.

That smackoff forgot to tie the pipes to the top of the van resulting in the death of an innocent woman stopped in front of him by impalement.

smackoff by Steven DePola February 26, 2005

slack off 

To masturbate, jack off, stroke your penis, fap, beat your wiener, play with yourself,

My penis was a boner so I slacked off.
slack off.

slack off by Minecraft1238 February 7, 2019

snackoff 

To jack off while eating a snack that makes you more horny such as a donut or a twinkie.

Dude, I just had a huge snackoff last night!
Sweet.

snackoff by hornyjackoffer April 5, 2009