tap (one) for (something)
1. To select someone for some particular opportunity, especially to take up a specific role, position, or purpose. Often used in passive constructions. The decorated general has been tapped by the president for the position of Secretary of State. I can't believe the boss tapped me for the big promotion!
2. To ask one for something, especially money. He tapped his parents for $50 to cover the cost of the ticket. Every week, Janet taps me for a couple dollars. It has really started adding up!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
To select someone for something, such as an appointment to an office: The mayor tapped his top aide for the position of communications director.
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.