A Tootsie Pop

Tootsie.com
A group of engineering students from Purdue University recorded that their licking machine, modeled after a human tongue, took an average of 364 licks to get to the center of a Tootsie Pop. They tried the same licking test on 20 volunteers and found that the average licks to the center were 252 licks.
Plans for the Purdue licking machine
A chemical engineering doctorate student from the University of Michigan recorded that his licking machine required an average of 411 licks per Tootsie Pop.
A group of students at Swathmore School used human lickers in a scientific experiment and determined it took an average of 144 licks to get to the center of a Tootsie Pop.

Junior high students at Swarthmore School conducting their study in sweets
Based on the wide range of results from these scientific studies, it is clear that the world may never know how many licks it really takes to get to the Tootsie Roll center of a Tootsie Pop.

Discoverychannel.com
Welcome to mythbusters.This has been posted before. The answer is 3, then you have to bite it. ha ha. Now go bang your head on the wall or do something more important than posting stuff like this.Seriously, you have made the same mistake that many new posters have made - in your zeal to get your name on the board you posted the first thing that popped in your head without checking first. You should do a search first to see if the topic has already been posted and you should also do a google search to see if you can find it. The topic should be something that the mythbusters can test on the air. Otherwise you are just clogging up the board with junk.
Answerbus.com
The average number of licks to the center of a Tootsie pop is 412.7 but since there cannot be a partial lick so it would round to 413 licks. The average time is 4 minutes 48 seconds.