Adj. Characterized by otherworldly voluminousity or by some trait or traits suited to breasts of one's ultimate fantasies. Conjugation of mammary and fantastic.
A combination of the wordsMom and Fantastic. Used to describe an extraordinary mom.
Jessica: That Shira is so awesome, she is like the best mom, super wife, works full time, takes care of her dead-beat baby-daddy, volunteers and is extremely popular.
Tracy: Yeah, I know. She is like so Momtastic!!
It is said of the situation where a person has the bad luck to make contact with his testicles against an undefined surface or object, intentioned or not.
Given the nature of the word, it is more appropriate to design cases where the interaction is made with a moving object, for example, a ball.
Although it is extremely painful for the victim, it tends to be considerably funny to people who witness it.
Today in the baseball game the pitcher took a nutshot; the baseball hit him in the nuts.
Man, I just watched the funniest nutshot video ever.