Male organ; penis
"He pushed his filthy spam dagger deep into her fanjita"
by Marzipan March 26, 2003
When you send Pam to the shops for some fags, bog roll and spam. When you get it you make a spam dagger and force feed it to the cat until it shits on your mums bed
"The cats shat the spam dagger all over mums bed.. Lets blame Andy"
by Cat loves spam February 18, 2012