From Ripped Pants

Guy: What flavor?

SBSP: Banana Split.

Guy: We do not have it.

It's okay, i already "SPLIT" my pants!

Another? How about Rip-ple!

From The Nasty Patty

SBSP: We've been duped!

Mr K: We've been bamboozled!

SBSP: We've been speckledorfed!

Mr K: That's not even a word and i agree with ya!

I don't know about jokes but these are my favorite parts in these episodes.

Strangler: (as SpongeBob's bodyguard) Good, now I can strangle ya- I mean, choke you- I mean wrap my hand around your- I mean-
SpongeBob: Protect me?
Strangler: Yeah, thanks, kid.
SpongeBob: Sure, no problem, Strangler, I mean Body Guard.

"Spongebob meets the strangler"

Plankton: Don't back sass me!
SpongeBob: (mock voice) Don't back sass me!
Plankton: What?!
SpongeBob: (blows raspberry)
Plankton: That's it, you've just lost your brain privileges!

"Welcome to the chum bucket"

"from fools in april"

Squid: I just wanted to say i'm sssowwwyyy.

Sponge: Sorry, i couldn't understand.