tipping the can 

introducing small percentages of nitromethane into the fuel tank of a methanol burning race engine to increase its power output. this practice is against the rules of most sanctioning organizations in most racing classes. the exception being top fuel drag racing. in top fuel and top fuel funnycar nitromethane is used in very high percentages with only small amounts of methanol. nitromethane (ch3no2) mixes well with methanol but will not mix with gasoline unless a small percentage of acetone is added to the mix.

driver; "if I cant cut a light we will probably lose the next round because we have to race the number one qualifier".
crew cheif; "lets try tipping the can and hope no one can smell the nitro".
driver; "that is a stupid idea. I like racing here". or "good idea! did we bring any nitro?"

tipping the can by Nitrous Jim February 9, 2017

Tipping The Canoe 

An innuendo for sex

You man I was so, like, at this girl's house and we were tipping the canoe a bit.

Tipping The Canoe by Big Dick Shakur July 7, 2016