Vocabulary
がつんと言う
がつんという
to tell a person (something) emphatically; to let a person have it
expression
verb
Example sentences
俺（おれ）が日本（にほん）の総理大臣（そうりだいじん）ならクリントンにガツンと言（い）ってやるのになあ。
If I were prime minister, I'd give Clinton a good talking to.