This is the 6922nd most frequent Japanese word.
ボロボロ
Worn-out, crumbling, or shattered.
ボロボロ in this sentence is used to describe something in a very worn-out, deteriorated condition, referring to his shoes.
彼の靴はもうボロボロだ。
His shoes are already worn out.
ボロボロ in this sentence conveys a state of complete ruin or defeat, emphasizing the thoroughness of the game's outcome.
試合でボロボロに負けた。
We were completely defeated in the game.
ボロボロ here indicates a messy appearance caused by excessive crying, describing the overall look of the face.