Something that is "a lot of bad," full of bad, wackness, sucks, lame, horrible, or just generally being bad (bad meaning bad, not bad meaning good).
A term coined in Azusa, CA in the late 1980's by Jon Barcarse and used extensively, and probably exclusively, in the
dance groups
Legion of Zoom and Creativity.
Variations can also be used. Alottafast, meaning not very
fast.
Example 1
Person1: "Those rims on that MR2 are
wack!"
Person2: "Yeah, definitely alottabad dude."
Example 2
Person1: "Did the
DJ's record just skip?"
Person2: "Yeah, alottabad dude."
Example 3
Person1: "Your girlfriend's
annoying."
Person2: "I know. She's alottabad dude."