spend a penny
US /spɛnd ə ˈpɛni/
UK /spɛnd ə ˈpɛni/
1.
(British, informal, euphemistic) to use a toilet
:
•
Excuse me for a moment, I just need to spend a penny.
•
After the long journey, everyone was desperate to spend a penny.
(British, informal, euphemistic) to use a toilet