Welching

Continually whining, crying, complaining, or bitching about someone else or someone elses work even though you are the one who is a useless fuck-up and caused the problem in the first place.

Welcher (while snot-bubbling):"Somebody put stuff in the area i am working in, but didn't move it out while I was on my phone, playing my game in the shitter for the last 2 hours".

Innocent bystander: "stop your fucking welching, you're a grown ass man, so shut the fuck up before someone thinks we're friends".