sassypantsiness - (n)
1.- the state of having el Diablo in one's pantelones....for whatever reason. Usually referring to dancing.
example: That man dances with such sassypantsiness...ooh la la.
2. -the state of having oom in your pah pah.
example: It is my sassypantsiness that keeps me young.
3. - the state of being a liar liar whose pants are on fire.
example: I'm sick of your #$@$%*&!! sassypantsiness, you #^*%*!