noun
swim briefs; Speedos
Colloquial wasei-eigo term for men's tight, brief-style swimwear. The name comes from the shape resembling a boomerang.
wasei-eigo (Japanese-coined English), from boomerang pants
彼はプールで派手なブーメランパンツをはいていた。
He was wearing flashy swim briefs at the pool.
ブーメランパンツは抵抗がある人も多い。
Many people feel uncomfortable with swim briefs.