a wet dream

a wet dream

 
1. a sexually exciting dream that makes semen (= thick liquid containing a man's seed) come out of a man's penis while he is sleeping Most boys start getting wet dreams in their early teens.
2. (very informal) something that is very pleasant or very exciting for someone This new machine is a computer buff's wet dream.
See also: dream, wet
References in periodicals archive ?
Men often experience their first orgasm during a wet dream, but women rarely have nocturnal orgasms until they have had orgasm by some other means first.