This dictionary, an illegitimate but fertile offspring of the Uxbridge English Dictionary and the Philosophical Lexicon, was started by Anthony Gottlieb, author of The Dream of Reason: A History of Western Philosophy (Penguin 2001). Suggestions for new entries should be sent to Hugh Mellor.
A fortiori: There are at least 40 papers on this already
A posteriori: He is talking out of his arse
A priori: Someone already said that
Abstraction: Stretching stomach muscles
Accidental property: Windfall
Aesthetic: Pain-inducing
Argumentum ad baculum: Back-stabbing
B-theory of time: Time is honey
Bad company objection: 'That's what they say'
Canonical form: Clergyman's track record
Chinese Room: Restaurant with effective but uncomprehending waiters
Chinese Room Argument: Dispute in a Chinese Room (q.v.)
Contingent proposition: Unnecessary remark
Converse: Prisoners' poetry
Copula: Small policewoman
Demiurge: Weak inclination
Determinist: Ambitious colleague
Disposition: Here (see also 'dat-position')
Dualist: Disputatious
Endurantist: Patient listener
Entailment: What Manx cats envy
Error theory: Your theory
Ex post facto: The proof is in the mail
Existential import: Cheap foreign philosophy
Extensional operator: Masseur
Extensionally adequate: Stinks but otherwise OK
External relation: Foreign family member
Fallacy: Male-dominated
Fictionalist: Liar
Formal ontology: Black tie metaphysics
Framework: Conceptual zimmer frame
Genidentity: Jennifer's essence
Goedel's Theorem: 'Every system of truths contains at least one misrepresented by popularisers'
Heterological: Preferring the other truth-value
Idealist: String of suggestions
Internal relation: Embryo
Intuition: Under instruction
Material conditional: A device for drawing material conclusions from immaterial premises
Mentalese: Dualist painkiller
Metaphysics: Just encountered a branch of science
Monist: Philosophical whinger
Naturalist: Bare particular
One over many: Head of Department
Ontic vagueness: Indeterminate credit
Ontological commitment: Longevity
Overdetermined: Tries too hard
Paradox: Military airports
Physicalist: Muscular naturalist (q.v.)
Presentist: Generous gift-giver
Property dualism: 'What's yours is mine'
Propositional calculus: The science of pick-up lines
Reductionist: Administrator
Second order desire: Wish for a refill
Semantics: Sea-going parasites
Specious present: Gift-horse
Sorites Paradox: 'Philosophers never lose enough hair to become bald'
Supervenience: Large toilet
Surprise Test Paradox: Students are never ready for the exam
Theodicy: Companion piece to Theiliad
Third Man Argument: I can't see what's wrong with this, but X can
Thomist: Bibliophile
Transcendental Argument: Enables philosophers to endure the toothache
Transworld identity: Frequent flyer number
Two-place relation: Family member with a second home
Universalist: Academic poet