adjectival noun:

• serious; diligent; honest; earnest - colloquialism - abbreviation ➜ がちんこ

noun / ~の noun:

• (definitely) gay; gay person who isn't pretending to be gay; non-fake gay - slang ➜ がち・ホモ

noun:

• capsule toy; vending machine toy - also brand name ➜ カプセルトイ

noun / ~する noun:

• method of selling random in-game items in mobile games (similar to how capsule toys are sold) ➜ コンプリートガチャ

noun:

• gachuck; device for applying small, clip-style paper fasteners

adjectival noun:

• muscular; stocky; beefy - slang ➜ がっちり・むちむち

adverb:

• truly; in earnest - slang ➜ ガチンコ

godan ~る verb / intransitive verb:

• to do earnestly; to get serious - slang ➜ ガチ

~と adverb:

• chattering (teeth) - onomatopoeia

adjectival noun:

• (frozen, worried) stiff - onomatopoeia

adjectival noun / ~の noun:

• rigid (personality, thinking, etc.); inflexible; overly serious - onomatopoeia

adverb / ~の noun:

• voracious (e.g. work, study); without slack or pause - onomatopoeia

noun:

• competing in earnest (esp. in sumo) - slang

adjectival noun / noun / ~する noun / adverb / ~と adverb:

• clatter; clank; rattling - onomatopoeia

noun:

• capsule toy vending machine ➜ カプセルトイ

~と adverb / noun:

• (with a) slamming noise (door, telephone receiver); (with a) banging noise; (with a) clash (broken dish); (with a) clank; (with a) bang - onomatopoeia

noun:

• goose

noun:

• capsule-toy vending machine; machine-vended capsule toy

adverb:

• with a clashing or clanging sound - onomatopoeia