What it means
だらけ follows a noun to mean that something is full of, covered with, or riddled with that thing. It usually describes an undesirable or negative condition, such as errors, dirt, scratches, or problems. In predicate sentences, it is commonly followed by だ in familiar speech or です in polite speech, and it can also appear in the pattern NだらけのN.
Usage note
だらけ normally carries a negative nuance and is not the usual choice for neutral abundance. For a surface that is covered with a substance, まみれ may be more appropriate when the emphasis is physical coating rather than an undesirable collection of things.
How to use it
この報告書は誤りだらけです。
This report is full of errors.
この報告書は誤りだらけだ。
This report is full of errors.
Example sentences
提出前に確認した報告書は、数字の間違いだらけでした。
The report I checked before submitting it was full of numerical errors.
古い地図は傷だらけで、道を探すのに苦労した。
The old map was covered in scratches, so I had difficulty finding the way.
引っ越し直後の部屋