To arrange into piles or stacks; SYN. heap up, stack up.
When work or something else that must be done increases faster than you can do it, it piles up.
1. Entasser. Empiler des caisses.
2. (Populaire) Voler.
3. Rouler. Empiler un client.
1. Empiler. Entasser des paquets.
2. Comprimer. Entasser des passagers.
3. Accumuler. Entasser des références.
When things increase in number and start to form a pile, they pile up. When people add things to a pile, they pile them up.