Black Hat dropdown menu... How is he doing it?

I have been looking for some domain names to buy and I thought about the name "lick it and stick it". I went to lick it and stick it d@t c@m to see if it was available. It wasnt. Someone had it in domain parking but this is the funny thing... even thought I have only been to the site once I notice the "lick it and stick it" website in my dropdown address menu like I had been there many times... How did they get in my dropdown menu after only one visit?

Your left hand hit www, then your right hand hit the . and the your left hand hit the l key - and so on and so on.

But I only went to the site one time... I have been to some sites multiple time and they still! dont show in my dropdown. Why?

you probably didn't type those sites - or they're just there and need to be scrolled down to.

About the only way I know to avoid the addresses in the dropdown is to type the whole address into google and hit "feeling lucky" (good way to hide porn surfing from wife/girlfriend)