Yawnslaught

When one person's yawn causes a chain reaction of continual yawning that never stops.

When Sarah yawned at work today, it caused a yawnslaught. We were all so tired from yawning all afternoon that we didn't get any work done.

Yawnslaught by Theologitron February 8, 2018

dawnslaught

noun - referring to the single shaft of sunlight that penetrates your blinds, curtains, and shades to aim directly at your eyes while sleeping late

"I was trying to sleep in, but the dawnslaught woke me right up!"

dawnslaught by Rimonian February 3, 2006