These sounds:

Slippy-pippy,
Slip-slop,
Sniffle-schnort,
Flap-amusement­,
Choo-choo.

The eternal choo-choo—

Haha!
We keep chugging along:

Choo-choo!
Slip-slapple!
Turtle!
Turtle!
Slippy-sloppy-pl­oppy!
Flop-clumping!
Choo-choo.