Heinous Funnies: Kill 'Er Up With Regular/References

Cultural references

• 

  Scratchy's advertising billboard.
  The story title is a pun on the filling station catchphrase, "Fill 'er up with regular", a request for the attendant to fill the tank.
• A sign in the window says that Scratchy's Service Station and Lunch Counter sells Henzoil products, a pun on Pennzoil.
• The station also sells Gasso gasoline, a pun on Esso.
• When Scratchy berates Itchy, telling him to get back to work, Itchy is reading a magazine called Mousequire, a pun on Esquire.
• The cat customer bears a strong resemblance to Betty Boop.

Goofs

• The advertising billboard for Scratchy's Service Station and Lunch Counter (where Scratchy invites people to drop in for coffee) has "scalding" misspelled as "scaulding".