Definition of be my guest
- "Could I borrow your pen?" "Sure, be my guest."
: of or relating to me or myself especially as possessor, agent, object of an action, or familiar person
: muscle : muscle and
: a person entertained in one's house
: a person to whom hospitality is extended
: a person who pays for the services of an establishment (such as a hotel or restaurant)
: to receive as a guest
: to appear as a guest
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