They've been trying to work/get the 'bugs' out of the system. [=trying to fix the system's problems]
He was first bitten by 'the' acting 'bug' [=he first became interested in acting] when he was 18.
Her legs were covered in 'bug' bites. [=itchy or painful wounds from insects]
(..) but then Chuck, uh, Billy insulted one of 'em... and the heavyset girl said that I even had a receding hairline, and I was a few pounds overweight. And I was like, "Go fuck yourself. " I swallowed a bug. Hi. - You're an idiot. - What? You're an idiot. I've been sitting over there for (..)1997 Good Will Hunting