がっつり

Adverb (fukushi), adverb taking the 'to' particle, onomatopoeic or mimetic word, colloquialism

Image search

月「つき」「がつ」「げつ」「づき」「がっ」

Moon

がったりがったり

suddenly (esp. falling); dramatically

繋がりつながり

connection; link; relationship

学活がっかつ

class activities; homeroom activities

付っ切りつっきり

constant attendance (by a doctor)