An offshoot of the popular phrasing/joke "Your Mom" in which the mother is actually complimented rather than insulted. Often includes intricate run-on phrasing/sentences.
Guy 1: I really disliked our tour guide in NYC
Guy 2: Your mom could be a tour guide because I'm sure she has a wealth of knowledge to share with the world to make it a better place.
Guy 1: Thanks for the mompliment!
Girl 1: Wow, I'm feeling burnt out.
Girl 2: Your mom feels burnt out from shining so brightly for all the world to see and enjoy. She is a hopeful ray of light that we could only aspire to be half as luminous as her.
Girl 1: What a wonderful your mompliment!
Girlfriend: That baby looks funny
Boyfriend: Your mom looks funny especially when she's doing an incredible job at comedy where I basically pee my pants and she's so nice that she offers to buy me new slacks because she is the most generous and giving woman I have the ABSOLUTE pleasure to know... except for you baby
Girlfriend: You almost got yourself in the dog house for that slightly awkward and creepy mompliment. But thanks for the mompliment!