DictionaryfugStuffy atmosphere
noun / verb

fug

FUG/fʌɡ/

Stale, stuffy air confined in a room.

The room's fug leaves both occupants hot and uncomfortable.

Two uncomfortable occupants in a small, poorly ventilated room: one fans her flushed face while the other loosens his collar beside a firmly closed, condensation-clouded window.
Etymology

The source records fug as originally dialect and school slang for a thick, close, stuffy atmosphere. It gives no deeper origin connecting the word’s form to that meaning.

In context

Whispers of History5:22
A confusing fug of smoke, spice, meat, mildew, and human sweat that you'll never truly scrub from your clothes or your skin.
Why You’d Cry Working in a Tudor Kitchen- Whispers of History (Why Tudor Cooks Wept)

More examples

  • Opening a window clears the fug from the crowded room.
  • Wet coats and poor ventilation fug up the entryway.
  • We step outside to escape the warm fug of the kitchen.

Forms

fug · fugs · fugged · fugging

fuggy adjective — Filled with warm, stale, stuffy air.

Similar words

stuffiness
Names the uncomfortable condition rather than the stale air itself.
staleness
Emphasizes a lack of freshness, not necessarily warmth or stuffiness.