During the water outage, the motel left a note saying the toilets were unflushable until repairs were made.

I accidentally sat on an unflushed public toilet and regretted it immediately.

Whenever he hears that joke, his face unflushes before he can hide his embarrassment.

I watched her unflush, the color fading from her cheeks.

The unflushing toilet in the hallway created a long line this morning.