1a. a sunken fence

1b. type of boundary to a garden, pleasure-ground, or park, designed not to interrupt the view and to be invisible until closely approached.
In order to keep the lizards out of our garden, we built a ha-ha.

We didn't want a fence obstructing our view of the pasture, so we built a ha-ha instead.
by malchik_gei March 22, 2007
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some times used to show amusement.
sometimes used to show that what the person is saying, doing, trying to do,or asking is complete unresonable on your standards.
Person 1:I am going to make the honor roles
Person 2:HA!
by mirgine December 27, 2007
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An exclamation that shows you use before you point something out
A-HA! I knew it was you dubie! don't try to hide from me.

A-HA! There's my mallet!
by Annchan October 01, 2003
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Like lol, it is meant to convey a laugh in texting and instant messaging, but unlike lol, you must actually have laughed before typing it. It also implies more confident laughter.

Basically it's a way to say lol, without having to say lol. It's great.
Text: After drinking last night, I had to throw up. So I tried to make it to the sink, but ended up puking on the linoleum floor, slipping in it, and falling down into a pool of my own vomit.

Response: Ha!
by Bryguy27 July 29, 2009
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A sudden and loud burst of laughter. Sometimes associated with an evil accomplishment or with the destruction of something OR someone.
(Unusually funny text message recieved) "Bwa ha ha ha" or "I'm going to take over the world. Bwa ha ha ha" OR "I will destroy them. Bwa ha ha ha"
by moxielady321 March 17, 2011
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A maniacal laughter made stereotypically by evil villains, sometimes sarcastically by normal people to indicate that they are up to something. Mua ha ha ha !!!
Tom: What are you up to?
Evil Jerry: Nobody knows... Mua ha ha haaaaa !!!!
by Evil Bill March 10, 2016
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has it = say => has it that = say that
An often cited statistic has it that in Britain RP speakers constitute only 3% of the population.
by anhminh June 29, 2011
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