What Sleepy Joe Says is His Physical & Mental Fill is Good He Says Couldn’t Spit-Out Fitness so What Does Fill Mean?

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During his gaffe-fest yesterday, Sleepy Joe couldn’t pronounce the word fitness, saying instead fill, that his physical and mental fill is good, saying it again on the second try, the third a success, so what was he thinking with the fill word anyway, full. of . . . .  as the memes may go?