bet you; I will bet you
To borrow a phrase from everyone's favorite Alaskan, you betcha!
And you betcha, the Pistons lost to the Clippers that night.
Although the company's previous titles also include the anti-Palin doc Sarah Palin: You betcha!
An' furthermore I'll betcha a can of peaches or a apple pie for each one of this gang, all 'round, that you can't prove it.
And you betcha life I hang onto this, creditors or no creditors, and Pawling to the contrary!
Another of the trio then said: betcha theyd be glad of compny.
I betcha I got more den dat big square down dere to de courthouse full of em.
"I betcha I'm looking right at two or three of those devils and not seeing them," he grumbled.
representing casual pronunciation of bet you, attested by 1904.
Bet you: I'll betcha I can jump higher (1922+)
Yes; certainly; surely; bet your boots
[1857+; betcha form fr you bet you or you bet your life]