Make physical contact, either forcefully or sexually. For example, Stop pushing—there's no need to get physical, or Thirteen is too young to get physical in that way. [Slang; second half of 1900s]
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.