Stands for Too Fucking Old. When someone wears clothes 2-3 generations younger than their actual age.
"Dave, age 54, was so fixated on staying young that he didn't realize he was TFO to wear a Hollister tee-shirt."
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.
Buy the mug