| ̷ ̷ ̷ ̷| ̷ ̷ adjective
Etymology: thick and thin
1. : having one sheave thicker than the other and taking two ropes of differing size — used of a tackle block; compare fiddle block
2. : ready to go through thick and thin : unreservedly or blindly loyal or devoted
a thick-and-thin friend
3. : having regularly or irregularly spaced sections thicker than the rest — used of yarns