If a man has a wet dream, he has a dream about sex which causes him to have an orgasm while he is asleep.
2. countable noun [usually poss NOUN]
If someone says that a person or thing is a particular person's wet dream, they are saying in an unkind and mocking way that this person or thing would give that person a lot of pleasure.
[informal, rude]
wet dream in British English
noun
an erotic dream accompanied by an emission of semen during or just after sleep
wet dream in American English
Informal
1.
an erotic dream during which the person having the dream ejaculates
2.
nocturnal emission
Examples of 'wet dream' in a sentence
wet dream
It began Last night I had another wet dream... `You could be right,' she said.
Anthony Masters CASCADES - THE DAY OF THE DEAD (2001)
I was in uniform defending my country long before you had your first wet dream.