These jokes about people, generally women, who have blonde hair serve as a form of blonde versus brunette rivalry. They are often considered to be derogatory as many are mere variants on traditional ethnic jokes or jests about other identifiable groups (such as Italian jokes involving Carabinieri).
In some cases, jokes about stereotypically stupid people have circulated since the seventeenth century with only the wording and targeted groups changed.
Some blonde jokes rely on sexual humour to portray or stereotype their subjects as promiscuous. Many of these are rephrased sorority girl or Essex girl jokes, much as other jokes about dumb blondes are based on long-running ethnic jokes.
Blonde jokes nearly always take the format of the blonde placing herself in a situation or making a comment that serves to highlight her supposed promiscuity and/or lack of intelligence, cluelessness and clumsiness. The blonde of the joke is often placed in an unusual situation with a brunette or redhead.
The emergence of a class of meta-jokes about blondes ("meta-blonde jokes", i.e., jokes about blonde jokes) is noted. In a typical plot of this type a blonde complains about the unfairness of the stereotype propagated by blonde jokes, with a punch line actually reinforcing the stereotype.  An example is about a blonde objecting to a ventriloquist act packed with sexist jokes about blondes:
- Blonde: “I’ve heard enough of your stupid blonde jokes. What makes you think you can stereotype women that way? What does the colour of a person’s hair have to do with her worth as a human being? It’s men like you that keep women like me from being respected at work and in the community and from reaching our full potential as a person. Because you and men like you continue to perpetuate discrimination against not only blondes, but women in general, and all in the name of humour!”
- Ventriloquist: "I'm sorry ma'am but..."
- Blonde: “You stay out of this, mister! I’m talking to that little idiot on your knee.”
Like all humour based on stereotypes, blonde jokes are considered offensive to many people, particularly women. However, blonde jokes, unlike other jokes that target minorities, do appear in mainstream media such as newspapers and television.
- Thomas, Jeannie B. (1997). "Dumb Blondes, Dan Quayle, and Hillary Clinton: Gender, Sexuality, and Stupidity in Jokes". The Journal of American Folklore 110 (437): 277–313. doi:10.2307/541162.
- Giselinde Kuipers, Good Humor, Bad Taste: A Sociology of the Joke, page 24, Walter de Gruyter, 2006, ISBN 9783110186154
- Karen Ross, The Handbook of Gender, Sex and Media, chapter 6, John Wiley & Sons, 2011, ISBN 9781118114223
- Limor Shifman, Dafna Lemish, "Virtually Blonde: Blonde Jokes in the Global Age and Postfeminist Discourse", in: The Handbook of Gender, Sex and Media
- Blundy, Anna (2007-08-25). "'Blonde' jokes aren't funny - No other minority would stand for this cruel stereotyping". Spectator, The (Romford): 18–19. ISSN 0038-6952.
- Greenwood, D; LM Isbell (2002). "Ambivalent Sexism and the Dumb Blonde: Men's and Women's Reactions to Sexist Jokes". Psychology of Women Quarterly (Blackwell Publishers) 26 (4): 341–350. doi:10.1111/1471-6402.t01-2-00073. ISSN 0361-6843.