An electric reciprocating saw (originally designed for hardware use)modified to have a dildo attached on the end of it. It is seen used on clips from the Howard Stern show, as Dana Dearmond demonstrates it.

A derogatory term, derived from the word 'fuck', and combined with the inanimate object, 'saw'. Coined by Penny Arcade.

When you get fucked over so badly you feel like you have had your Manjunk fucking sawed off.