The negative command 〜るな (“don’t…”) gets squeezed: the る turns into ん before な. ふざけるな becomes ふざけんな, 来るな becomes 来んな. The same る → ん change as in してるの → してんの.
A rough order. Friends only, and mostly for laughs.
One performer keeps grinning and saying things are funny, and edges closer to the annoyed partner.
Don't come any closer, you.
Textbookあなた、近づいてこないでください。Negative command 「近づいてくるな」: 「る」 becomes 「ん」 → 「くんな」, plus 「よ」. Polite equivalent: 「〜ないでください」.
A religious recruiter is selling a sacred object, and the customer asks how it was made.
Don't go outdoing me!
Textbookこちらを上回ってこないでください。Negative command 「上回ってくるな」: 「る」 becomes 「ん」 → 「くんな」, plus 「よ」 for force.
Two rivals agree to settle who owns a gym with a match, and one calls on a partner named Tacchan to start.
Don't get cocky!
Textbook調子に乗らないでください。Negative command "乗るな" (don't get carried away): the "る" squeezes into "ん", giving "乗んな", plus emphatic "よ".
One performer suddenly starts an odd act, and the partner keeps demanding to know what they are doing.
Don't 'please' me! What are you doing, man?
Textbookお願いしないでください。あなたは何をしているんですか。Negative command "するな" with "る" squeezed to "ん": "お願いすんな". Polite equivalent is "しないでください".
From other routines in the library. Automatic transcripts, not yet checked line by line.
〜すんな means “don’t!” (rough). The negative command 〜るな (“don’t…”) gets squeezed: the る turns into ん before な. ふざけるな becomes ふざけんな, 来るな becomes 来んな. The same る → ん change as in してるの → してんの.
With friends: OK. With coworkers: avoid. With a boss or teacher: avoid. A rough order. Friends only, and mostly for laughs.
In 1,905 live comedy routines, 〜すんな appears in 401 lines from 128 comedians.