To-nas-tay-nah
Meaning ' tonight's the night ' but in a more fun and up beat way. Often you will be admired for using such a exciting term.
Jim: Gosh.. I'm having such a crappy day.
Sue: Jim tonight is going to be so much fun!! Don't be grumpy. TO-NAS-TAY-NAH! lets live it up!
Sue: Jim tonight is going to be so much fun!! Don't be grumpy. TO-NAS-TAY-NAH! lets live it up!