Riding a bike, roller coaster, or anything else with someone else between your legs or you between theirs

A term used by the telecommunications industry to describe a transport circuit which is experiencing any combination of the following problems, line code violations, path code violations, errored seconds, severely errored seconds, unavailable seconds, ect.

Operating a motorcycle without a helmet.

having sex without a condom

When your underwear rides up your ass.

Driving a car that is unclean, has a messed up paint job, has dents, doesn't have nice rims, or is just a hooptie. Riding dirty is the opposite of riding clean.

Riding in a car with overly tinted windows.