The word "ejaculate" is both noun and verb, and is pronounced differently for each. As a verb, it is pronounced:
E - JACK - YOU - LATE
As a noun, it is pronounced:
E - JACK - YOU - LIT
Also, "ejaculate" doesn't pertain only to seminal fluid; it can be used as a synonym for "eject." (The words are closely related.) Thus, any excretion of any fluid can be considered an ejaculation.
This fact opens up worlds of possibilities in the realm of humorous conversation.