What does bench off the crap mean?

bench off the crap meaning in Urban Dictionary

a phrase accustomed tell some one to:-Be quiet-give myself nachos-i like turtles-your stupid-ruby and sarah are good names for babies if you prefer hot children-google it i dont give a shit-i just farted also it smells so incredibly bad, have to lay off those nachos-or made use of randomly in a sentance in order to interrupt their conversation to annoy themOriginally comes from the song "get your crap off the workbench" by the tiny and never famous acapella group "ruby sarah and pals voice" but was changed whilst the perfomers sang the track whilst drunk.