‘to lose your bottle‘ means ‘to lose your confidence and fail to do something, or decide not to do it‘.
‘to bottle it‘ which also means ‘to lose your courage and fail to do something‘
He was going to ask his girlfriend to marry him but lost his bottle at the last minute. She asked him instead.
I thought about painting my front door bright green but I bottled it. I went for a conservative grey instead.
I was going to buy a Taiyaki pan for my cooking event but lost my bottle. I didn’t have enough money.
What is your expamle? Comment your answer please!
Sources: BBC Learning English