Thanks, Jim. There are 4 sentences, all indexed to 借金で首が回らない, which was the predecessor of this entry. We should have reindexed them. I'll do that now.

There are sentences:  Tatoeba has
彼は今借金で首が回らない。
He is deeply in debt now.
And also
彼は借金で首が回らなくなり、家を手放さざるえなかった。
He was deep in debt, and had to part with his house.

首が回らない	18393
首が回らぬ	134

Possibly not, but it's been there a while.

gg5 examples
首が回らない is in daij, nikk.

借金で首が回らない	2843
首が回らない	18393

I really don't think we need "借金で首が回らない" when the "debt" part is inferred in 首が回らない anyway.

@@ -1,2 +1 @@
-<ent_seq>2016310</ent_seq>
@@ -5 +4 @@
-<keb>借金で首が回らない</keb>
+<keb>首が回らない</keb>
@@ -8 +7 @@
-<keb>借金で首がまわらない</keb>
+<keb>首がまわらない</keb>
@@ -11 +10 @@
-<reb>しゃっきんでくびがまわらない</reb>
+<reb>くびがまわらない</reb>
@@ -16 +15,6 @@
-<gloss>deep in debt</gloss>
+<gloss>being over one's head (in debt, etc.)</gloss>
+<gloss>being up to one's neck (in debt)</gloss>
+</sense>
+<sense>
+<pos>&exp;</pos>
+<gloss>being unable to turn one's head</gloss>

@@ -14,0 +15 @@
+<misc>&id;</misc>