In her bombshell, new tell-all book Not Afraid of Life: My Journey So Far, daughter of potential presidential candidate Sarah Palin lashes out at her baby daddy Levi Johnston.

Throughout the text, Bristol has harsh words for her former boyfriend, calling him a "gnat" who "cheated on me about as frequently as he sharpened his hockey skates."

Ouch!

The mom of two-year-old Tripp also reveals that she lost her virginity to Levi on a camping trip after he got her drunk on wine coolers.

Bristol says that when she told Levi she was pregnant, his response was: "better be a ******* boy."

The former Dancing with the Stars contestant says she had a one word reaction when she saw Levi's racy spread in Playgirl magazine, "Puke!"

No word from Levi yet, but his tell-all, Deer in the Headlights: My Life in Sarah Palin's Crosshairs, comes out this fall.

The book is reportedly packed with zingers aimed at Bristol and her famous mom.