When your junk is sweating on a hot day, and your bag sticks to the side of your leg. It is notably unpleasant when moving from walk to run, or when standing up quickly.

Starting out as friends with someone, but have the possibility or potential for a relationship on the next level

Romantic comedy or romcom specifically geared toward moms. Most mere mortals will not understand momcoms without a mom to translate the comedy for them. Momcommers will say things such as, "You wouldn't get it, you're not a mom" or "I guess I just really got the comedy because I am a mom"

A fake friend who secretly wishes you to fail at everything.

How a dumb motherfucker becomes a smart motherfucker after he smokes a bunch of pot.

When some ones sleeping with there mouth open and you fart in their mouth causing an echo

when one forearm is more tanned than the other. this phenomenon is due to one side of your body being closer to a car window than the other. the condition gets more noticeable after long drives, hence it is named after truckers. if you're driving in America your left forearm gets tanned. if you're driving in the UK your right forearm gets tanned. if you're driving in Asia you're probably fucked anyway so it really doesn't matter