When something you saw recently on t.v. occurs near or around you.It doesn't have to be t.v., mabey an inside
joke between
friends and then it is said on t.v. or by an unaware
person. The term implies that wherever this 'pocket' occurs,i.e. t.v., was in your pocket and heared you joking earlier
Garrett:Bro, that little girl looks like
Strawberry Shortcake!
Mecca:I know,
right?...
...then 5 minutes later they
walk inside and Strawberry Shortcake is on t.v. because Mecca's neice is watching it.
Garrett and Mecca:WHAT UP POCKET!!!!!