Bananna

The Bananna is a Food item that replaces models/props/cs_italy/bananna.mdl on any map. The only other way it can be obtained is through the Splinter Box, Dimension of Gluttony, and RTD. Unlike the Bananna Bunch, the Bananna is dangerous to eat. Upon consuming the Bananna, the player will be knocked down for 4 seconds, take 30 Toxic damage, take 25 Radiation, and be launched backwards at 1000 u/s.

Trivia

 * The Bananna is safe to eat in the Dimension of Gluttony, without any negative effects.
 * "Bananna" is a misspelling of "Banana". This is an intentional jab at Valve's misspelling of the model name in models/props/cs_italy/bananna.mdl.