if you do something on the off-chance, you do it because you hope you will get or find something or someone, even if it is not very likely.

I don't think he works in the shop on Saturdays, but you could stop by on the off-chance.

Journalists often investigate film stars' private lives on the off-chance that they might find something scandalous. (often + that)

She flew in from New York on the off-chance of getting tickets to see Becker play his last match at Wimbledon. (often + of + doing something)

• put someone on the right track
• put someone on the shelf
• put someone on the spot
• put someone out of action
• put someone out of its misery
• put someone out of mind
• put someone out of misery
• put someone out of their misery
• put someone out of your mind
• put someone out to pasture
• put someone over knee
• put someone over the top
• put someone over your knee
• put someone's back up
• put someone's mind at ease
• put someone's mind at rest
• put someone's nose out of joint
• put someone through
• put someone through hell
• put someone through hoops
• put someone through paces
• put someone through something
• put someone through their paces
• put someone through the mill
• put someone through the wringer