Third-person singular simple present indicative form of know which side one's bread is buttered on

simple past tense of know which side one's bread is buttered on

past participle of know which side one's bread is buttered on

One should not make a judgement until one hears the other side.

Two aspects of the same thing. / Two things that superficially appear to be opposites but are fundamentally similar.

(algebra, mnemonic) An acronym to help remember that when a value is moved to the opposite side of the equals sign, then the operator is changed also.

(idiomatic) To manipulate opponents or competitors in a manner which benefits the manipulator.

(idiomatic) To profit from two things at the same time, especially when those things seem contradictory or incompatible.

Alternative form of play both sides against the middle

(figuratively) Indicating contradictory things.