TWOTD is "intumesce"

[OC]

intumesce

intr.v.
1. To swell or expand; enlarge.
2. To bubble up, especially from the effect of heating.

[caribiner23]

It took Glenn about three minutes to turn his clean living room intumesce.

[DarkFury]

Lord of the Rings was one of those movies that could've benefited from a 15 minute intumesce to give you time to go to the bathroom so that you wouldn't miss anything.

[ShawnLee]

The teenage boy was attempting to get intumesce with his girlfriend when he dropped the candle, set the rug on fire, sprayed his girlfriend with the fier extinguisher, and had his parents walk in on the mess.