When you're angry as shit but you want to say 'did' in an angry ass way
You say "DI" and then you sustain the "I" until the other D
"NINA I CAN'T BELIEVE WHAT YOU DIIIIIIIIIIIIIIIIIIIIIIIIIIID! YOU RUINED CHRISTMAS! YOU'RE GROUNDED!"
The VERY last of something. You also really want to emphasize the fact that it is the last.
"NOOOOO! WE'RE IN LAST ASS PLACE!"
"who the hell took the Last ass energy drink"