ふざけてないで

stop fooling around, don't mess around

→ ふざける
verb · imperative Rare #33,606
stop fooling around, don't mess around A colloquial form of ふざけていないで, used to tell someone to stop fooling around and do something else.
JA: ふざけてないで、早く宿題をしなさい。
EN: Stop fooling around and do your homework quickly.
Conjugation of ふざける
Imperative
ふざけんなふざけないでふざけてないで

ふざけてないで来い

Quit messing around and get over here.

— グエムル -漢江の怪物- (2006)

ふざけてないで帰ろう

Stop fooling around and let's go home.

— オールド・ボーイ (2003)

ふざけてないで早く食べてしまいなさい

Stop fooling around and hurry up and eat it.

ふざけてないで履いて

Stop fooling around and put your shoes on.

ふざけてないで手伝って

Stop fooling around and help me.

— ROMA/ローマ (2018)