- a person who rides a bicycle, motorcycle, or motorbike, especially in competition or as a hobby.
- Informal. a member of a motorcycle gang.
Origin of biker
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for biker
Like most biker groups, this one has a special way to honor a fallen member.
Qualifying, as an Iraq Biker has nothing to do with family background.
And some say that recently they were joined by “Night Wolves,” a biker gang from Volgograd.Kremlin Analysts Push For Ukraine Annexation
February 4, 2014
What does Sheryl Mott—your biker chick character in Homeland—have in common with them?Winona Ryder Dishes on ‘Homefront,’ ‘Beetlejuice 2,’ and Generation X
November 27, 2013
One biker identified by police as Christopher Cruz of New Jersey, can be seen cutting in front of the Range Rover.How New York City’s ‘Sons of Anarchy’ Terrorized a Young Family
October 2, 2013
"He's mighty different from Biker," said Mrs. Munsberg in an undertone.
Then Biker's always drinking more or less, and he's got the swell head, anyhow.
It's Galton's idea, and he gave the job to Biker because he thought an educated fellow could get hold of people.
Two important and extremely good-looking brides had refused to see him because Biker had enraged them in his day.
- informal a member of a motorcyle gang
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for biker
"motorcycle rider" (especially with reference to club affiliation), 1968, American English, from bike (n.) in its slang sense of "motorcycle" (1939).
Online Etymology Dictionary, © 2010 Douglas Harper