1. A person, place, or thing (aka NOUN) that habitually ruins/fails/
destroys in some way. Used synonymously with crapper.
2. (verb) bumrucking - to fail to work, to ruin, or to
royally fuck up a
situation.
"My camera won't work again. This is
the fifth time this week."
"What a bumrucker."
or
"It's a bumrucker of a car, doesn't even work half
the time."
or
"You're such a bumrucking idiot, man. I can't believe you crashed your car into that
fence post."