When someone messes up badly, or botches. Can be a little or a big botch the word is very versatile. It rolls off the tongue and actually gets on people nerves the more you say it.
Lance is the definition of a batta tee

“Did you see how many times Mark dropped the crabs, his new nickname is batta tee boy”

“Harry’s a batta tee, Harry’s a batta tee”
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