トレーニングパンツ

noun

training pants; pull-up diapers

Refers to absorbent underwear for toddlers transitioning from diapers to regular underwear; often used in toilet training.

• そろそろトレーニングパンツに移い行こうする時じ期きですね。

  It's about time to switch to training pants.

• トレーニングパンツをはかせてトイレトレーニングを始はじめた。

  I started toilet training by putting training pants on my child.