Aidan: Wow! That was a great meal! Don’t you think?
Ogie: Yeah, you can say that again.

Aidan: Time for a dessert!
Ogie: Oh, no, I’m chock-a-block ..phew!

Aidan: Okay! One Chocolate Ice Cream please! i’ll order some Vanilla ice cream and pudding
Ogie; No-no- wait!

Ogie: It means, I’m full, no more food please.
Aidan: oh, Okay, I’ll eat your portion then.

from:  http://www.thefreedictionary.com/Chockablock
chock-a-block or chock·a·block  (chk-blk)
adj.
1. Squeezed together; jammed: The cheering fans were chock-a-block in the stands.
2. Completely filled; stuffed: “I recommend the north shore chowder, chockablock with pieces of seasonal fish” (Charles Monaghan).
3. Nautical Drawn so close as to have the blocks touching. Used of a ship’s hoisting tackle.
adv.
Chock: a hall that was chock-a-block full.