がっつり

がっつり
adverb
fully; heartily; solidly
1. heartily; fully (eating)
To eat a lot or with great appetite, especially heavy, satisfying food.
がっつり()べたい。
I want to eat heartily.
がっつり(けい)のラーメンが()きだ。
I like hearty ramen.
(ひる)にがっつりステーキを()べた。
I had a hearty steak for lunch.
2. solidly; thoroughly; seriously
To do something with full effort or to a great extent.
がっつり(かせ)いだ。
I made a lot of money.
がっつり勉強(べんきょう)した。
I studied seriously.
週末(しゅうまつ)はがっつり(はたら)いた。
I worked hard on the weekend.

がっつり is a casual intensifier that conveys doing something fully or with gusto. It may come from がつがつ (greedily eating).

REGISTER:
This is informal/colloquial language popular especially among younger speakers.

COMMON PATTERNS:

  • がっつり()べる: to eat heartily
  • がっつり(けい): hearty-style (often about food)
  • がっつり(かせ)ぐ: to earn a lot
  • がっつり(はたら)く: to work hard