An/(one's) old flame noun phrase informal idiomatic common
An ex-lover.
Mary has been heard to make threats to her old flame.
Yesterday, I came across my old flame on the street.
Do you think it would be possible for you to still be friends with an old flame?
Every man will eventually find a suitable woman to be his romantic partner.
Loving gestures of couples such as petting, kissing, and cuddling
To be in a poor condition.
To be extremely old (a joke or a story)
Another individual is far older than the individual in question
Plural nouns: old flames.