What does "tab him" mean in the animated TV series Dastardly and Muttley?
Mutley, you snickering, floppy eared hound. When courage is needed, you're never around. Those medals you wear on your moth-eaten chest Should be there for bungling at which you are best. So, stop that pigeon Stop that pigeon Stop that pigeon Stop that pigeon Stop that pigeon Stop that pigeon Stop that pigeon Howwww! Nab him Jab him Tab him Grab him Stop that pigeon now.
Source: Soundtrack Artists - Dastardly & Mutley In Their Flying Machine Lyrics | MetroLyrics
-- My answer that I have deleted --
I think I knew the answer! Even though I am not given to posting answers, I am forced to post one after taking sometime to prepare the question.
It sounds as if Dastardly doesn't mind that pigeon gets hit and stuck to a wall for example.
From Oxford Dictionaries Site
verb (tabs, tabbing, tabbed) [with object]
Mark or identify with a projecting piece of material:
he opened the book at a page tabbed by a cloth bookmark
His copy of The Diviners was meticulously tabbed and flagged and he had a thick file of all of the emails that the two men had exchanged with each other before this evening.