I'd say hyperbole, which is using exaggeration and overstatement for effect.
what kind of figurative language would the lyrics "she fell for him and hasn't gotten up since" be if talking about love???
Sounds like a "play on words"
The definition of a play on words is the clever or witty use of language such that the language itself becomes funny or humorous or interesting.
Read more at http://www.yourdictionary.com/play-on-words#SRFyYAhEHyjDWPy2.99
A Country and Western song (?)
