tantrums

ok can somebody explain to me how i would do a tantrum? last week i learned backflips off the boat and then took them to my trampoline easily with or w/o a handle and found out they're crazy easy. so i'm thinking a tantrum would be an easier first invert than my backroll attempt that failed horribly. how do i get the pop off the wake? you seem to sort hit it sideways. help me out with some tips so i can try it this weekend.