Federal officials issue new guidelines in an effort to pump the brakes on catchy highway signs

The messages on signs that some drivers see while commuting across the U.S. can range from pop culture references to humor.

Phrases like "Wearing your seat belt is so fetch," is a nod to the "Mean Girls" movie, and "Cut off? Don't get bad blood. Shake it off" is a reference to several Taylor Swift songs.

However, the Federal Highway Safety Administration is pumping the brakes on this trend. Their newly issued guidelines say "States should avoid the use of humor and pop culture references because it may confuse or distract drivers."