Originally Posted by
Lemur
Um, a secondary (probably unintentional) meaning for a word or phrase is a double entendre. Hyperbole, as you can tell from the Greek roots (υπερβολή) means extreme and/or deliberate exaggeration for emphasis. A word can only be hyperbolic in its usage, never its meaning.
So when AC/DC sings that "we've got big balls" they're engaging in a double entendre. When Kiss says "I want to rock and roll all night and party every day" they're using hyperbole. When Scorpions sings "I'm gonna rock you like a hurricane" they're using a simile, and when Led Zepplin says "And she's climbing a stairway to heaven" they're using a metaphor.
I could go on, but in the interests of public health I won't.