Doofi or doofuses?

[MattBaggins]

Fungus --- fungi

[democracyindanger]

1. Doofae

[kodi]

2. go back to the root word for its plural ending.

.

[MattBaggins]

3. Doof? nt

[MattBaggins]

4. I know, I know, I Know

Republicans

[Rabrrrrrr]

5. for the ultimate guide to making -us ending words plural,

see here:

http://www.straightdope.com/mailbag/mplurals.html

It starts with trying to find the plural of penis, but also then works into virus, and along the way offers you more Latin grammar ideas and rules than you could possibly care to know.

[MattBaggins]

6. virus is itself a plural word

[jdots]

7. A bevy or zimdar of Doofs

if the number is over 14.If refering to freepers the word becomes a mucus of doofs.

[mcscajun]

8. I think you're free to make up your own plural...

...consider the wisdom of comedian Shelley Berman on the subject:

"I just want to say just a few words about stewardii. They have... (he is interrupted by crowd shreik of laughter)
Stewardii is plural for Stewardess. Uh...I think there are many incongruities in the English language as far as plurals are concerned. For example, it seems to me that the plural for Yo-yo should be Yo-yi. How about, one sheriff; several sheriffim. Um...one goof; a group of geef; uh...one Kleenex, several Kleenices; one Blouse, two Blice ........Two Jackii."

[Richardo]

9. Doofus (singular); Republican*s* (plural)

[rug]

10. doofetti

[ProfessorGAC]

11. The Official Pronouncement: It's Doofi

See, i call my cat Little Doofus and the dog Big Doofus. So, when they're both in the same room, they are the Doofi. I can't allow the plural form to be changed now, it would confuse the two of them when they read DU. So, please do my pets a favor and let them think the plural is doofi.
The Professor