Definition of you/you'd better believe it
- "Do you think they can win?" "You/You'd better believe it!"
: you had : you would
: comparative of good
: greater than half
: improved in health or mental attitude
: to make better (see 1better): such as
: to make more tolerable or acceptable
: to make more complete or perfect
: comparative of well
: in a more excellent manner
: to greater advantage : preferably
: had better (see 3better 1b)
What made you want to look up you/you'd better believe it? Please tell us where you read or heard it (including the quote, if possible).