noun. A joyous, spasmodic, spermatic, or cliterrific outburst of witty, refreshing sarcasm.
Related terms: spasmgasm, ectoplasmgasm.
Real citation: "Sorry :( had a sarcasmgasm."
(James Hicks, Feb. 1, 2005, http://groups-beta.google.com/group/alt.games.everquest/msg/bc2b79f77205ad0b?hl=en)
Made-up citation: "I don't even know how to think about the President without having a sarcasmgasm. This was a bad decade to give up smoking crack."