Most of the yellow stuff came off, rendering the keys good enough for emergency driving.

The corrosive yellow stuff was now all over the floor.

He thought of cracking them open, yellow stuff coming out.

"The yellow stuff's from the furniture filling," he told me.

He catches it with a napkin before the yellow stuff can reach his tie.

Well it may be nothing, but I don't like the look of that yellow stuff.

A sip of the yellow stuff is a revelation.

"Then you think that yellow stuff is all just a coincidence?"

All you need is the several pounds of yellow stuff you already have put away.

I want to get down to that third tier, where the yellow stuff is.