a haphazard collection; a miscellany; a medley — things gathered together from various sources.
この店は寄せ集めの商品を安く売っている。
This shop sells a miscellany of goods at low prices.
彼のアルバムは寄せ集めの曲ばかりだが、味があって面白い。
His album is just a jumble of different songs, but it's charming and interesting.
寄せ集めのスタッフで大会に臨んだが、意外とまとまっていた。
We went into the tournament with a makeshift team, but surprisingly performed well together.