trunk briefs

plural plural-only

(plural only) Short-leg boxer briefs

Japanese Meaning

短い脚のボクサーブリーフ、つまり足の丈が短いボクサーブリーフを指す。

I packed two pairs of trunk briefs for the beach trip.

ビーチ旅行には、股下の短いボクサーブリーフを2枚持って行きました。

Sense（1）

(plural only) Short-leg boxer briefs

Arnold grabbed his trunk briefs, undershirt, and socks and looked him over again.