similar to the dayyyyyuuummm sound.
when some sort of thiing is entirely wonderful, marvelous, gorgeous, great, fantastic, ect ect.
Guy 1: heyyy baby (;
Girl: ? pshhhh,
Girl walks away
Guy 2 walks up
Guy 1: chick choo! dayyum she sexy :b
Guy 2: yeahh man she fine
Guy 1: very bootylicious indeed
thats was such an effing great movie! it was so chicka chooo! :D