Gagable
When you sniff something so foul it wants to make you puke, but you hold it in like a champ, even though you're about to lose your lunch.
I walked into the bathroom and instantly knew I'd have to hold it in or I'd be the one cleaning the floor later.
The guy's socks reeked like a dead raccoon had been wearing them for a month.
I saw the food and instantly knew I'd have to fake a smile the whole time.