What is Lumpus?

Male: straight, likes porn and sex, is normally lazy and hates his family
Female: a fat slut who feeds off mcdonalds and guys cocks

i know hes a lumpus, but its not my fault

Lumpus - meme gif

The act of being shit at something or generally rubbish at life

Oi that guys hella lumpus
You there, get your fat lumpus fucking arse off the floor and do something