The chin folds on Thanos’s chin.

Aka a chin nut sack.

When your fbs increase and you feel bad

1. Any universal or celestial being who deliberately or unintentionally "blocks" one , some, or all of the seven chakras (root, sacral, solar plexus, heart, throat, third eye or crown) belonging to another universal or celestial being causing a disruption in the natural flow of energy on their journey to Pure Potentiality.
2. A hater that disrupts your flow.

When ever you can't figure out whether someone is cheating or hacking.

SHUT UP! In a very rude way.