Yvonne Gallagher Mar 1, 2022:

@ Asker Looks to me that it's a word play, as Charlotte said
on both "twosome" [...]and "terrible two's"

If not that, well then, it's just 2 people/a pair but not necessarily a couple

Charlotte Fleming Feb 28, 2022:

Yes, the hyphen is irrelevant - I was merely making the point that I was spelling it without the hyphen as that is more normal.

Tony M Feb 28, 2022:

@ Asker In essence, it means a 'duo'; but because we have the humorous expression in EN 'Terrible Twins', the writer has attempted to copy the alliteration; I think the hyphen is a red herring, as all the other examples I can think of with '-some' dispense with it in modern usage: threesome, etc.
In EN we quite like this alliterative kind of epithet, cf. the books by children's author Enid Blyton about the 'Famous Five'.

Mohamed Fouda (asker) Feb 28, 2022:

@Charlotte Fleming Thank you! That's how it is written, 'Terrible Two-Some'.

Charlotte Fleming Feb 28, 2022:

The "terrible two's" is an expression for small children who (usually around 2 years old) have tantrums and generally start to make life difficult for their parents. So this seems to be a pun on both "twosome" (it's more commonly written without the hyphen) and "terrible two's". Without context, it's hard to be more specific.

Mohamed Fouda (asker) Feb 28, 2022:

Thanks! In this episode, there are two villains who cause trouble to the city and the pJs. There are also two out of three PJs who get in trouble by a villain. Not sure what exactly the title refers to.

ATIL KAYHAN Feb 28, 2022:

Two-some simply means any two people. However, these two people are not necessarily a couple (of opposite sex) but they can be.