Slammadong 

What you do to your friends grandmother. Normally at a theme based gathering. (i.e. party, church..)

Tonight the theme at the local bingo hall is "Slammadong In Grandma's Butt!".

Slammadong by KB8220 April 4, 2010

slammang 

1) The act of slamming one's penis in a door, window, or hatch for sexual arousment.

2) Putting extreme pressure on one's penis for sexual arousment.

1) I was slammang it all night.

slammang by coolguy61 January 10, 2010