when you are capable of agreeing with any given statement you deice you will make a decision to agree with or not
Samothy: My mom's cooking is great!
Bobothy: I could agree
Used before a statement of agreement to indicate that the speaker doesn't particularly approve of foul (or just plain rude) language.
Driver: What the hell's this cocksucker doing here? This is the fast lane and he's driving like my gramps!
Passenger: I don't agree with the language, but you're right.