go on tick
go on tick
To purchase something on credit. "Tick" is short for "ticket," a note that showed one's debt (although this practice is less common today). Primarily heard in UK. I had to go on tick for a bunch of last-minute purchases because I've already spent so much on this trip! Well, if you need groceries and won't get paid for another week, just go on tick.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.