a laugh word that may be a result of ironic misfortune or just general misfortune. The laugh is generally used when someone does something wrong and it may not be laugh out loud funny, but as a harsh response the laugh can be used. Basically used for the amusement of others around a persons misfortune.
Fred: that bike trick is easy, watch.
Bill: Go on then.
(Fred attempts a bike trick and fails, falling off his bike)
Bill: Bahdadada.
Roger: I can't find my class anywhere.
Sam: Really?
Roger: Yeh, i've looked all round the school but i can't find them.
Peter: Bahdadada.
Nicholas: So 2x2=4 and 3x3 is 12... i mean 9.
Liam: BAHDADADA!
When a person typically of a jolly disposition becomes exceptionally grumpy, stubborn, and generally adverse to having any kind of fun. This condition can usually be overcome with an adequate supply of caffeine.
Adam is being extremely grumpy and doesn't want to do anything fun, what a Badadam.
He is very tired and he's just turned Badadam, so we can't convince him to do anything.
One second he was in a fine mood and then he transformed into Badadam and got all poopy.
A loud, obnoxious parent at a kids' little league game who gets into verbal and physical altercations with the opposing team's parents (often due to drunkenness). They have delusions of grandeur that their kid is the hero of his or her team, and that all other little league teams pale in comparison to theirs.
Bat Dad: "Oh yeaaaah! OH YEAAAAHHHH!!! South Park is goin' doooown!Feel it comin'! You ain't got a chance, South Park! Here we go, Denver, here we go! Huh, huh! There ain't no way some little mountain kids can beat Denver, not with MY son on second base!"