1 Something so hot or smooth you're too lazy to say 'super sexy' because that sounds like work and you're too tired to care. Expand This new song is mad sexHer hair is mad sexThat pizza is mad sex + Examples
2 A girl named Madison who's so desperate for attention she'll sleep with a mop, a dog, and the guy who forgot to pay the rent. Expand Madison was at the club with 7 guys last nightShe slept with my uncle and my brotherShe brought 3 guys back to my house + Examples
3 A hilarious word that started in a card game and now gets used to make people laugh and forget their problems. Expand We played cards and said 'mad sex' 10 timesHe said 'mad sex' and we all died laughingWe used it in a card game and it became a thing + Examples
4 What the kids on Urban Dictionary want to see the most, especially if it involves eating, pooping, or getting eaten by someone. Expand That definition was mad sexHe added anal sex to everythingShe made a whole paragraph about eating + Examples
5 When you have sex for so long you're not sure if you're still human or if you've turned into a couch. Expand We had mad sex for 4 hoursThey had mad sex and missed their flightHe had mad sex and forgot his pants + Examples