Complaint
Grumbling, Phrase
noun
You're writing a paragraph because you have lots of complaints and you want to get your grumbling down on paper before you forget anything. You know how some people keep a gratitude journal? This is like the opposite of that. A complaint journal.
文句 originally just meant a phrase or expression. While it can still be used like this, like in 決まり文句 (stock phrase), in modern usage it most often refers to complaints or grumbling — the phrases you spout off when you're not happy about something.
This is a jukugo word, which usually means on'yomi readings from the kanji. You learned two different on'yomi readings for 文, so here's a mnemonic to help you remember which one to use:
You're full of complaints about your pet monster (もん). Remember the monster you bought online back in 注文? Well, it's a total dud. It refuses to scare teenage couples, or hide under local kids' beds, or do anything remotely monster-like. You've been yelling complaints at it all week, but it just growls disinterestedly and ignores you.
彼は何かにつけて文句を言いたがります。
He always wants to complain about something.
そのレストランの料理には文句のつけようがありませんでした。
I could not complain about the food at that restaurant.
それは口説き文句でしょ？
That's a pickup line, isn't it?