踏ふみ抜ぬく

godan verb (-ku), transitive verb

step on a sharp object; run a nail through one's foot

Used when stepping on something sharp like a nail, causing it to pierce the foot. Often in accident contexts.

• 工こう事じ現げん場ばで釘くぎを踏ふみ抜ぬいてしまった。

  I stepped on a nail at the construction site.

godan verb (-ku), transitive verb

put one's foot through the floor

Describes breaking through a weak floor or surface by stepping on it. Often used with rotten wood or thin boards.

• 古ふるい家いえの床ゆかを踏ふみ抜ぬいて、下したに落おちた。

  I put my foot through the floor of the old house and fell through.