Hannigan 

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.

Hannigan by Scatman223 June 27, 2008

Hannigan 

super funtabulas guy who enjoies spelling things wrong and doing summersalts on yo face.

Oh my, look at that Hannigan do those funtabulas summersalts on yo face

Hannigan by the hannigan February 5, 2009

hannigan 

A person who is obnoxious and unattractive to the opposite sex.

I know. He is such a Hannigan.

hannigan by Un femme January 25, 2011

Alyson Hannigan

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.

Alyson Hannigan by E Walker May 22, 2006

Alison Hannigan

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.

Alison Hannigan by George of the Windy Hills February 1, 2009

Darcy Hannigan 

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?

Darcy Hannigan by That’s Cold April 26, 2019

Hennigans 

Some damn good scotch. It doesn't even make you smell when you drink it. Can also be used as a paint thinner.

mmmmm, that's hennigans, the no smell no tell scotch!

Hennigans by The spencinator May 13, 2005