The thing with locking that poeple dont understand realy is the when a locker does a move he/she waits till the las milisecound then hits the arm/leg what ever on the beat. and then goes back tho a 'neutral state' and then hits the next one. watch flukey or Skooby Doo dance and you'll see it clearly.
On top of that you allwas try to show the first step of a move realy big (or just nail it on the beat, hard to explain with words...) and the last one you hold a little extra.
Give the move a big opening and a grand finale, Lock at the girl in the clip from Watts Stax (0.50) just groovin, claping her hands, then she starts to get down, she's holding the beat then hiting it hard. Holding it hitting it, and THATS what makes it funky! Then fastforward to 2.00 and whatch Greg and Fluky do the Stop&Go Holding it, Hitting it, Holding it, HITTING it.
(all the old funk songs have FUNKY drummers and they DONT keep straight beats, they make it funky, shuffle it up, and play on everything from 1/1 notes down to 1/32 notes even 1/64!)
This makes the move bounce, hop, skip crackle and pop my friend!

One other thing to keep in mind is the groove of the funk dance, not just locking, but rocking bboying AND popping is the upbounce (sumone wrote it before don't know if thats a good description) on all the 1/8 notes. Look at a Rocker/Bboy getting down, a Locker do a skeeter rabbit, and a Popper getting funky. They ALL have it, the bboys show it the most with there arms and shoulders, but it's the same FEEL/GROOVE/MUSIC/FUNK.
the hardest thing to learn once u start to lock is note the LOCKING moves themself but the older steps that MAKES the dance a DANCE, not just moves. You have to have the rocksteady, the breakdown, the funky 4 corners, funky penguin all of them DOWN to understand the feel of locking.
I watched a old clip on Wigs page of the Coin Lockers (think they are from Japan) and they did the sneekapeek, i rewind that clip so many time that my computer ate it (haha bad old VCR joke....) I just COULD'NT get it there was something about it that i didn't get... it took me 2 years before Greg showed me the move correctly (I had manage to fake the step by then but i couldn't dance it yet) and he took one look at me, said: Man u gotta be funky when u do it! Like this!
The head, shoulders, back, hips, knees, legs, feet, arms and hands all moving. I still didn't get it so he broke it down, the basic rocksteady, But add you cheast, shoulders and head, and the movement of the arms and feet. Small subtle moves, but combined the made the WHOLE, the FUNK.
Hope i didn't write too much, and showing is much easier than trying to but it down with words... But i tell u once again the bounce and the groove gotta be there!
Peace