December is full of celebrations — whether you’re marking the remainder of Hanukkah, Yule, Christmas, Kwanzaa or ringing in the New Year, there’s a good chance your calendar is packed with parties this month. Before you blast the jam, though, it’s worth asking: how well do you actually know Lexington’s noise ordinance? Lucky for you, we’re breaking it down in plain terms — no need to dig through city statutes if your neighbors come knocking…