Wording that could have a sexual interpretation, especially the extra attention drawn to the alternate meaning by claiming it was inadvertent.
Her: Thanks I love burritos.
Him: I'll keep it warm until you get here.
Her: I'll be there soon. I'm salivating already.
Him: I didn't mean any innuendo.
Her: Of course you didn't.
Him: I'm innocent as your nonnuendo.
Her: You're pretty hard on yourself.