Two episodes come to mind:

"And Baby Make Four" (Season 5) - Furley got two black eyes; one from Cindy and the livingroom door, the other from Jack accidentally elbowing him while preparing to punch Cindy's d-bag date

"Critic's Choice" (Season 6) - Furley tried to get Jack's date out the bathroom by using a credit card, and she snatched it through the door. She hit him in the face with her pocketbook after he called her a spoiled brat. Then she along with food critic Jason Defarge used his credit card to have a great night out

"Critic's Choice" (Season 6) - Furley tried to get Jack's date out the bathroom by using a credit card, and she snatched it through the door. She hit him in the face with her pocketbook after he called her a spoiled brat. Then she along with food critic Jason Defarge used his credit card to have a great night out
Even the sound of the woman belting Furley with the pocketbook sounded pretty harsh.