An Irish name, it's the shortened Anglicized form of Gaelic Ó hAnnagáin ‘descendant of Annagán’, a pet form of the personal name Annach
Hello' my name is Keenan Hannigan.
by Scatman223 July 11, 2008
by the hannigan February 5, 2009
by Un femme January 25, 2011
An American actress made famous for her roles on Buffy the Vampire Slayer, all 3 American Pie films, and the tv series How I met Your Mother. Considered by some, including myself to be a hottie. Not hot in the fake Hollywood type...bleached hair,big fake tits,etc.....more girl next door type.
Alyson Hannigan is a hottie.Schpladoinkle.
by E Walker May 14, 2006
A great actress known for beautiful red hair, a smoking body, and playing a lesbian in Buffy the Vampire Slayer, shattering the hearts of thousands of fanboys who continue to live with their parents. Almost destroyed career in Date Movie, now in How I Met Your Mother, not committing any more crimes against humanity.
Dude, that lady walking by you is an Alison Hannigan in terms of hotness.
Wow, I'm gonna go for it!
Thinking of Alison Hannigan lesbianing on TV gives me a hard on. She's hotter than the sun.
Wow, I'm gonna go for it!
Thinking of Alison Hannigan lesbianing on TV gives me a hard on. She's hotter than the sun.
by George of the Windy Hills February 2, 2009
An Girl (for now) that can’t decide what she wants to be Bi, Lesbian or turn into a guy! And also goes out with her Cousins ‘Best Friend’
You know that Darcy Hannigan how is she?
by That’s Cold April 26, 2019