slang The viral infection herpes, particularly the strains that are transmitted through kissing or sexual contact. Oh man, I really hope I don't have the herp.
See also: herp
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.