I'd be grateful if you could translate and check the following (standard Irish).

Cor Líne Chósta
-----------------
Timpeall Léime
Cladach na Farraige
Aillte agus Carraigeacha
Teangacha Thalún
Tonnta Slaparnacha
Círíní Cúir
Léim Siar

Tadhg

Cor Líne Chósta - a few coastal lines
-----------------
Timpeall Léime - what did you intend to say?
Cladach na Farraige - sea shore
Aillte agus Carraigeacha - cliffs and rocks
Teangacha Thalún - country languages [ I don't know what that means]
Tonnta Slaparnacha - splashing waves
Círíní Cúir - foam crested waves
Léim Siar - jump back

5/8 - close

As the title says, it's dance poetry. Thus it's a dance and we have:

Cor Líne Chósta - Coast Line Reel

with the usual Lead Around:

Timpeall Léime - Jump Circle

And then of course a standard geographical term:

Teangacha Thalún - Tongues of Land

cor imeallbhoird, cor cósta

fáinne léime

cinn tíre, reanna, rosa

Imeallbhord - hm, looks interesting. I wasn't aware of this word.

As I pointed out already, tongue of land = teanga thalún is a well-established geographical term.

Fáinne is a group of people forming a ring to dance round. Timpeall is a single dancer dancing a lead around.

2 Google search results (only 1 in Irish, a dictionary entry*) - that's not "well-established", not even in Irish.



* You can't even trust dictionaries.