Person 1: Your such an exponentialfraction!
Person 2: Did you just call me that! THATS SO BAD AND SHOULD NEVER BE SPOKEN OF!
Person 1: yeah, I just called you that.
Person 2: ( sits in corner and cries)
An exponential entendre is similar to a double entendre, but the dual meanings or interpretations of the word are both obvious (unlike a double entendre, where one meaning is more subtle)
Joe: "I heard you are pregnant?"
Jane: "Yes, how did you know? I'm already 2 months pregnant!"
Joe: "I guess it's too late to pull out!"
Ruth: "That's an exponential entendre!"