Frette is 'froid' in
Joual, which is 'cold' in English.
As you walk by the streets of Montreal, huddled in your bubble jacket waiting for the 34 Sainte-Catherine to arrive, the man beside you mutters under his breath:
"Y fa frette en calice!"
It's fucking cold!
Note that '
y' is not the pronoun 'y', but how
Quebecers/
Quebecois pronounce 'Il' which is the 3rd person pronoun (singular). Uh...that might be confusing, but if you've studied any French, you'd know what I mean.
Also 'fa' is 'fait' and under some rough Quebecois accents, that is the result.
In standard French, the output would be (drum roll):
Il fait très froid.
It is very cold.