to stick to; to cling to; to adhere to
鍋に焦げがこびり付いている。
The pan has burnt residue stuck to it.
その言葉が頭にこびり付いて離れない。
Those words are stuck in my head and won't leave.
シンクにこびり付いた汚れを落とすのに苦労した。
I had trouble removing the grime that had stuck to the sink.