(bodybuilding) A high-calorie beverage or powdered drink used to bulk up the physique, especially the muscles. Typically, such beverages are very high in sugar content, and need to be drunk in large volumes.

(bodybuilding) A person who has difficulty gaining weight through either diet or exercise.

plural of gainer

One who gains a profit or advantage. / One who puts on weight. / (sports, slang) A diving or gymnastics maneuver, from a high diving board or platform, involving a simultaneous inversion and rotation.

simple past tense and past participle of gainsay

In a gainful manner; profitably.

(now rare) A misgiving; an internal feeling or prognostication of evil. / A giving against or away.

Third-person singular simple present indicative form of gainsay

Opposition, especially in speech. / Refusal to accept or believe something. / Contradiction. / Denial; denying. / (archaic or obsolete) Rebellious opposition; rebellion.

present participle of gainsay