lickety-split Syllabification: (lick·e·ty-split)Pronunciation: /ˌlikətē ˈsplit/Definition of lickety-split adverb informal as quickly as possible; immediately:I took off lickety-split across the lawnOrigin: early 19th century (in the phrase as fast as lickety 'at full speed'): from a fanciful extension of lick + the verb splitlickety-split in other Oxford dictionaries Definition of lickety-split in the British & World English dictionary