I wouldn't say no (to something)
I would like to have or do something. A: "Do you want to try that new sushi place for lunch?" B: "I wouldn't say no!" This winter has been too long and too cold—I wouldn't say no to a vacation on a sunny beach somewhere right about now.
I ˌwouldn’t say ˈno (to something)
(spoken) used to say that you would like something or to accept something that is offered: I wouldn’t say no to a pizza.‘Tea, Brian?’ ‘I wouldn’t say no.’