cross my heart (and hope to die)

cross my heart (and hope to die)

A vow that one is being truthful. Billy's the one who broke the cookie jar—cross my heart and hope to die!
See also: cross, heart, hope

cross my heart and hope to die

Attest to the truth of something; solemnly assure someone that the truth has been spoken. For example, I did lock the door-cross my heart and hope to die! This phrase most likely originated as a religious oath based on the sign of the cross; it is generally accompanied by hand gestures such as crossing one's hands over one's breast and then pointing the right hand skyward (a variant is cross my heart and point to God). Today most often uttered by children, it was first recorded in 1908.
See also: and, cross, die, heart, hope

cross my heart

or

cross my heart and hope to die

SPOKEN
You can say cross my heart or cross my heart and hope to die when you want to assure someone that you are telling the truth. Note: The heart is traditionally regarded as the centre of the emotions. And I won't tell any of the other girls about it. I promise, cross my heart. Sam grinned and held out his hand toward her. `You don't have to worry, okay.' — `Are you sure?' Erin asked. — `Cross my heart and hope to die.' Note: This expression is used mainly by children. Note: This expression refers to the Christian practice of moving your hand across your chest in the shape of a cross.
See also: cross, heart

cross my heart

used to emphasize the truthfulness and sincerity of what you are saying or promising. informal
The full version of this expression is cross my heart and hope to die , and is sometimes reinforced by making a sign of the Cross over your chest.
See also: cross, heart

cross my ˈheart (and hope to ˈdie)

(spoken) used for emphasizing that you are sincere when making a promise, or that what you say is true: ‘Don’t tell anyone else about this, will you?’ ‘Cross my heart, I won’t.’
See also: cross, heart