to be as thick as two short planks

thick as a brick

to be as thick as a brick/pigshit/two short planks

He’s as thick as two short planks

as thick as a brick/pigshit/two short planks

He is so thick that it hurts

thicko

thigh

a thight feeling in the chest

to be thin

to be thin on the ground

thin

as thin as a toothpick

A thing is not necessarily true because a man dies for it.

A thing of beauty is a joy forever

to be a thing of the past

thingamajig

Things can’t remain this way

Things become more difficult when drugs are part of the equation

Things are not as bad as they seem

Things are looking up.

Things remain as they were.

Things look rather bleak for him

to do things by halves

to do things in a big way