noun
buying; purchasing; stocking up on
Refers to the act of buying something, often with the nuance of buying in quantity or stocking up. Used as a noun.
年末の買い込みで、冷蔵庫がいっぱいになった。
With the year-end stocking up, the fridge became full.
買い込みすぎて、予算をオーバーしてしまった。
I bought too much and went over budget.
Compound of 買い (kai, 'buying', the continuative form of 買う) + 込み (komi, 'including', the continuative form of 込む). Literally 'buying in'.