The capture of Turtwig is similar to the capture of his Bulbasaur; both previously "belonged" to another person, they both protect or keep the peace in that area, and Ash caught it with Pikachu after Team Rocket attacked.
The dub title is a play off artist Will Smith's song Gettin' Jiggy wit It. Coincidentally, the The Powerpuff Girls (1998) cartoon series also has an episode titled Gettin' Twiggy With It.
James's Carnivine is revealed to know Bullet Seed.
Ash catches a Turtwig.