Dip as in slightly lower your hips because they are dancing in sync.
He means squat
dip /dip/ verb 1. put or let something down quickly or briefly in or into (liquid).
But also dip as in leave the establishment/ building
Dip
to leave or depart, often quickly or suddenly
Out of curiosity, I am not familiar with the stack that runs the behind the scenes at all for lemmy. Are you blocking IP ranges or something else?