Hello there!
I'm trying to recall a video I watched about British expressions around a year ago.
In the video, they explained the meaning of 'cheeky coffee' and also mentioned another expression with a similar meaning, but I can't remember it. If I remember correctly, it sounded like 'to have a coffee on a...', with the meaning 'to have a coffee quickly between two tasks/on the way'.
Do you know what the word could be in place of the dots?

Thank you!

Question

Hello there!
I'm trying to recall a video I watched about British expressions around a year ago. 
In the video, they explained the meaning of 'cheeky coffee' and also mentioned another expression with a similar meaning, but I can't remember it. If I remember correctly, it sounded like 'to have a coffee on a...', with the meaning 'to have a coffee quickly between two tasks/on the way'.
Do you know what the word could be in place of the dots?

Thank you!

Answer

The expression you're thinking of is likely "to have a coffee on the go." This phrase is used to describe having a coffee quickly, often while you are busy or on your way to do something else. It implies that the coffee is not a sit-down affair but something you grab and drink while continuing with your tasks or journey.

Answer

Perhaps you're thinking of "on a whim" which means without any prior planning.

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