adjective, derived from the term MILF from the movie American Pie. A MILF is a Mother I'd Like to Fuck; MILFtastic is a term to describe such a woman who is usually old enough to have a teenaged kid but hot enough that most guys don't care and would love bang her hard all night long doggie-style.
Man, look at the cans on that MILF! They're huge. I'd love to tittie-fuck her. And that ass if fine, she's all-round MILFtastic!
A song in a musical in which the singers are all male and the song is of a high manful quality; usually involves singing about objectifying women and/or fighting.
The song "Dames" from the Musical "42nd Street" is my favorite mantasticnumber.
Following his fifth keg of beer, Kevin ripped the horn off of his pet narwhal, and then nailed his porn-star girlfriend for hours. Subsequently, he felt mantastic.