Crossword puzzle clue "worst possible existence in a meme and a hint to six squares in this puzzle"

Worst possible existence, in a meme, and a hint to six squares in this puzzle

Movie that hit #1 for Worst Actor and Worst Picture in an IMDb 2005 "Worst of" poll

Busts some acrobatic moves ... and a hint to finding six moves busted across black squares in this puzzle

Drink cooler ... or a hint to six squares in this puzzle's answer

Party snack ... or a hint to six squares in this puzzle

Psalm 100 excerpt suggested by six puzzle answers and graphically represented by certain black squares in this puzzle

Sketch show created by David Walliams and Matt Lucas ... and a hint to eight squares in this puzzle

Web concerns ... and based on six familiar names hidden in rows 1, 4, 12 and 15 of this puzzle grid, what the black squares in those rows symbolize