To sneak onto the TTC (Toronto Transit Commission) without paying.
Originated from the song 'Baby Buluga' by Raffi as the extended jam (I know you've heard that one) contains a
reference to stealing a ride.
"Baby Beluga in the deep blue see,
He snuck on to the TTC for free"
- Raffi (1980)
Recently
the definition has been expanded to include stealing anything under $3.25 (the cash fare to ride the TTC).