Colloquially, thick and thin means good times and bad times.

Thick and Thin
Thick and Thin
Thick and thin
THICK ANDTHIN: MORAL ARGUMENT AT HOME AND ABROAD
Small and large deformation of thick and thin-film multi-layers: Effects of layer geometry, plasticity and compositional gradients
Radial mixing and the transition between the thick and thin Galactic discs
On thick and thin enamel in hominoids
Anisotropic elasto‐plastic finite element analysis of thick and thin plates and shells
Crossbridge and tropomyosin positions observed in native, interacting thick and thin filaments 1
Evaluation of a thick and thin section method for estimation of podocyte number, glomerular volume, and glomerular volume per podocy...
HOT ALCOHOLIC PHOSPHOTUNGSTIC ACID AND URANYL ACETATE AS ROUTINE STAINS FOR THICK AND THIN SECTIONS
Preparation of nanosized titania thick and thin films as gas-sensors
A simple triangular element for thick and thin plate and shell analysis