1. One who is known to destroy fun in any given situation. Sometimes quite comically mistaken for sun fucker.
2. An insult aimed at one who has ruined a joke.
3. Slang for 'vacuum cleaner' when said vacuum cleaner is being used to clean up the remnants of the previous night's party.
1. Preppy teenage girl: Gosh, mom, you're such a flippin' fun sucker! But, oh, geez, wait! Could you pick me up some condoms on the way home? 'Kay, thanks.
2. 'Nettie: Fun sucker! =p
3. Emo boy: Dear diary, So my dad beat me over the head with the fun sucker the other day...