庭いじりを

gardening

→ 庭いじり
phrase Rare #39,176
gardening 庭いじり means gardening or tending to the garden, and を marks it as the object of a verb. The を is often omitted in English translation.
JA: 週末は庭いじりを楽しんでいます。
EN: I enjoy gardening on weekends.

私の父は日曜日に庭いじりをする

My father does some gardening on Sundays.

庭いじりを少しした

I did a little gardening.

彼は退職庭いじりを始めた

He started gardening after he retired.