Interfering or meddling — involving oneself in someone else's affairs, often with a negative nuance.
彼の問題に手出しするつもりはないが、助けが必要なら言ってほしい。
I don't intend to meddle in his problem, but tell me if you need help.
親が子どもの恋愛に手出しするのはよくない。
It's not good for parents to meddle in their children's romantic relationships.
余計な手出しをすると、かえって事態が悪化することがある。
Unnecessary meddling can sometimes make the situation worse.
Mahjong term: keeping the drawn tile and discarding a different tile (contrasted with tsumogiri).
あの人は手出しが多いから、手の内を読むのが難しい。
That player often keeps the drawn tile, so it's hard to read their hand.
ルールによっては手出しとツモ切りで点数の扱いが変わることがある。
Depending on the rules, the treatment of points may differ between tedashi and tsumogiri.