1 definition by Hierophant

Top Definition
The act of riding the exterior of a railway carriage. The only upside of this activity is the high likelihood of the surfer being squished, thus removing himself from the genepool.
"Another kid died trainsurfing."
"It's just natural selection in action."
by Hierophant June 06, 2007

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