To lightly rub the tips of your fingers across someone's back (or anywhere else for that matter) to produce a slight tickle that feels very relaxing and can put you to sleep.
Guy 1: I was having a hard time sleeping, so my girlfriend gave me tickies. It was the most relaxing thing ever.
by kitkatkate May 18, 2013
a shot in 3-Cushion Billiards which follows this order: rail, ball, rail, ball. The sounds it mmakes from striking botch balls is sounds to sounds like "ticky". These shots can be among the easiest shots to make in an otherwise very hard game.
I was going to play this an around the table shot, until i realised there was a really easy way to shoot it as a ticky.
by chr|s sedition June 01, 2005