• to break off, to can, to cease, to chuck, to chuck up, to discard, to discontinue, to dismiss, to drop, to give over, to give up, to knock off, to lay aside, to lay by, to lay off, to leave off, to quit, quit, to relinquish, to sign off, to stop, to switch off, to take a pull
• to get out of sg, to quit doing sg, to shut up shop
• to knock off, to lay off, to quit work, to snatch one's time
• lately, latterly, of late
• chuck it!, come off it!, come off!, cut it out!, give me a break!, have done with it!, you'll get yourself disliked!
• to outgrow, outgrew, outgrown
• be done!, cheese it!, get off it!, have done!
• to lay off, to lie off, to quit, to quit, quit