Green’s Dictionary of Slang

1. the testicles.

1916		H.N Cary Sl. of Venery I 111: Glands — The testicles.
1925		Mencken letter 7 Nov. in Riggio Dreiser-Mencken Letters II (1986) 546: You will freeze your glands if you start on a Northward walking tour in this weather.

2. the breasts.

1974		V.C. Strasburger Rounding Third 43: Toba Morton did have a rather sizable pair of glands [HDAS].
1987		Daily Beacon (Univ. Tenn.) 7 Aug. 6: Here they sit, beers in hand, lustfully leering at glands [HDAS].
1988		Sonny Spoon [NBC-TV] I like American girls — they have such nice glands [HDAS].