The cog moves its foot forward and moves its fingers like it's doing a trip move.
This 'finger moving' summons yellow sparkles of light towards the toon(s), and then if the attack hits, the toon(s) will be moved up in the air and dropped to the ground, losing laff points.
The toon(s) will then either go sad or still be alive.
If the cog's attack misses, the light sparkles will go past the toon(s) and the toon(s) will jump up in the air for a few seconds before landing.