What is the meaning of ワケ in this sentence?


そんなワケねーだろ、このめでてぇ日に

The person who said this line is known for using katakana instead of Hiragana
or Kanji. I've found some other conflicting definitions for ウケ but none seem
to fit the context of the above sentence. On a side note I assume めでてぇ is a
casual form of omedetou?




The "dictionary" form of:

> 「そんなワケ **ねー** だろ、この **めでてぇ** 日{ひ}に。」

would be:

> 「そんなわけ **ない** だろう、この **めでたい** 日に。」

The original phrase is in the **_Kanto tough guy speech_**. Occuring twice in
that short phrase is the "famous" あい-to-えぇ/えー switch. 「ない」 became 「ねー」 and
「めでたい」 became 「めでてぇ」. This phenomenon has been discussed many times here on
SE, so I will just leave it at that.

「ワケ/わけ/訳{わけ}」 here is somewhat difficult to translate all by itself, but if I
had to, I would go with "reason" or "ground".

I would, instead, suggest that you remember 「そんなわけ（は/が）ない」 as a set phrase
meaning " ** _said no one ever_** " if I could go somewhat slangish. To use a
more traditional TL, it would be " ** _there is no way (that is
true/possible)_** "

This phrase is used very heavily among native speakers. You will often hear
the more slangy form 「 **な** わけねーだろ」 as 「そんな」 is often contracted to just 「な」
in very informal speech.

> On a side note I assume めでてぇ is a casual form of omedetou?

No, it is not. As I stated above, it is the same as 「めでたい」.

So, the phrase in question means:

> "There's no way that's possible on a happy day like this!"

Provide more context if this does not sound right.

