testicular fortitude

n. Balls; Ballsy.
More commonly used in its abbreviated form, tf.
"Hey man, tf!"
by EskimoBobGuy June 10, 2004
mugGet the testicular fortitudemug.

TF

n. Short for "testicular fortitude", meaning balls, or ballsy.
"Hey man, tf!" - "Hey man, ballsy!"
"That takes tf, dude." - "That takes balls, dude"
by EskimoBobGuy June 10, 2004
mugGet the TFmug.

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