wet dreams make cum
Mondegreen of "What Dreams May Come", a 1998 American fantasy drama film, starring Robin Williams and Cuba Gooding Jr. Unsurprisingly it is also the name of a pornographic film. Be careful not to confuse them.
(over phone)
Person 1: I saw What Dreams May Come last night, it made me cry.
Person 2: Wet dreams make cum? It made me blow!
Person 1: I saw What Dreams May Come last night, it made me cry.
Person 2: Wet dreams make cum? It made me blow!