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]
(..) I do not need to know that. Are you holding back your fondness. Due to his unmanly blondeness? Or the way he covers up that he's the honest goods? He's just a bit of a fixer upper. He's got a couple a' bugs. No, I don't. His isolation is confirmation of his desperation for healing hugs. (..)2013 Frozen