That is the correct spelling of "colloquial" (among peers, as with common language).
The Southern idiom for "can't" is often spelled as "cain't." It is a colloquial pronunciation commonly heard in Southern dialects.
Colloquial is an adjective--colloquial language.
colloquial
You can pronounce "colloquial" as kuh-LOH-kwee-ul.
in the village on the north people speak colloquial
The colloquial for motion pictures is movies.
That is the correct spelling of the colloquial term for a writer.
This is commonly bye or the Australian g'bye. (as in g'day)
The correct spelling is "unibrow" (colloquial term for joined eyebrows).
The spelling "nunchucks" is one colloquial usage. The actual term is nunchaku.
The spelling would be as asked, or "a list of to do's" which is a colloquial form.
The colloquial term for dogs is "pooches." The term poochies is an affectionate form.
The colloquial phrase is "most probably" and in correct grammar is just "probably."
The colloquial term (also "big shot" or "big wheel") is indeed "bigwig".
That is the correct spelling of the colloquial phrase "as warm as toast" (comfortably warm).
That is the correct spelling of the colloquial noun "start-up" (a new business).
The usual term (though colloquial) is "highlighted hair" for lightened hair.