Synonym of know B from a battledore (“to know anything at all; to have the most basic common sense or intelligence”)

Alternative form of not know which way to turn

(set phrase) To understand completely.

(US, African-American Vernacular) Indicates complete agreement.

(rhetorical) Indicates strong agreement with a preceding statement.

present participle of know any better

Synonym of know better

(chiefly upper Midwest US, informal) Used as a rhetorical question to confirm agreement, knowing or understanding at the end of a statement.

A rhetorical question asked to show that the person asking it neither knows the answer nor knows who might.

(idiomatic, dialect, slang) Indicates agreement, approval, encouragement.