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To break the 100 miles per hour barrier, preferably on a motorcycle.
"I was doing ton on the way over here"

"were you going ton-up on the motorway?"
by durruti April 19, 2007
Driving over 100 mph in a vehicle
Faaark me he went a Ton up over that dual carriagway
by Tom1111111111 January 07, 2007
Accelerating your vehicle to over 100mph.
"John did the ton-up on the way over."
by Anonymus Bosch September 29, 2005