chum some of this shit
coworker: so, boss has you doing his reports again, huh?  you: yeah, how 'bout you chum some of this shit with me?
having to perform a task that's very undesirable
"coworker: so, boss has you doing his reports again, huh?  you: yeah, how 'bout you chum some of this shit with me?" What is the definition of "chum some of this shit"?