What does いっぺんシメる mean exactly?


I'm reading "Fruits Basket" volume 3. In this scene, Kyo is annoyed by some
comments his classmates make, and says:

> いっぺんシメんぞ、おまえら。

I assume that this is some kind of a threat, like "I'll get you all for this".
But what is the literal meaning? Unfortunately there are several varieties of
いっぺん and several しめる. It's written in Kana, so am not sure which ones I should
pick. Also, why would they use katakana for the シメ?




「いっぺん」 ＝ 「[一回]{いっかい}」 ＝ 「[一度]{いちど}」 ＝ "(for) once"

Now, onto 「シメる」. When you see a verb that sounds familiar but its **_stem part
is written out in katakana_** , the chances are that you are seeing an
informal or slangy verb. 「シメる」 is no exception. It comes from 「締める」= "to
tighten", "to be strict",etc., but **_not_** 「閉める」= "to close".

＊Note that this occurs only with the Yamato verbs, not with Sino-loan-verbs
that end in 「する」.

(Verbs such as 「アピる」= "to apeal", 「ディスる」= "to disrespect", etc. technically
belong in a different category of verbs, obviously, so I am not including them
with my statement above regarding Yamato verbs even though they are also
written out in the 'katakana + る' format.)

「シメる」, IMHO, has a perfect English counterpart for both meaning and nuance
(and even slanginess) -- **_"to put the screws on (someone)"_**. You do not
have to be a gangster to use 「シメる」; We use it jokingly quite often.

「シメ **ん** ぞ」 is just the Kanto colloquial form of 「シメ **る** ぞ」

> いっぺんシメんぞ、おまえら。

therefore, means:

> "I'll hafta put the screws on you guys for once!"

