I gave at the office sentence spoken language polite
This expression is a way to say no politely and refuse to give money to someone or something, often to a charitable purpose.
"Would you like to donate 10 dollars to the hospital?" - "Sorry, I gave at the office."
When some perfect strangers start conversations with me in the street and ask me to donate money to a charitable organization, I will definitely say I gave at the office.
This idiom comes from an explanation for not contributing to a cause or organization, or an excuse not to donate or participate in anything. Campaigns for civic and charitable causes like the Red Cross and Community Chest were once far more prevalent at places of business than they now are, and people routinely made donations. Someone who was approached at home or elsewhere could have a valid excuse of “I gave through the office.”