If you think Big Sean's mother is a prude and afraid to keep it real, guess again. On Monday's edition (July 1) of 'Jimmy Kimmel Live!,' the Detroit rapper's mother recited a verse from her son's chart-topping song, 'Dance (Ass).' WTF?

We couldn't believe our eyes at first, but sure enough, Sean's mom was on the show for a special segment called "Words From Your Mother."

The matriarch, who is a former English teacher, graciously introduced herself, and then recited the chorus from Sean's booty anthem.

Looking poised and elegant, Sean's mother repeatedly said, "ass" with a visual of a bodacious woman twerking in the background. She even used profanity too! "Stop! Now make that motherf---er Hammer time," she said nonchalantly.

After reciting her lines, Big Sean's mom said, "That's my boy," and blew a kiss to her son.

We can only imagine what Big Sean is thinking right now. Who knows, she might join the G.O.O.D. Music crew and spit a few bars with Kanye West.

We kid, of course. The video is all in good fun.

Word to ya mutha.

Whose mother would you like to see spit rhymes on Jimmy Kimmel's "Words From Your Mother" segment? Tell us in the comments below.