Light post 

when a guy is laying on a bed with his erect penis up and she jumps of a diving board and lands on him with her legs spread apart and his penis goes inside her vagina.

yo jerry, my girlfriend gave me the best light post ever.
jerry: thats lit dude!

Light post by Abd al Alim May 1, 2018

Light Post 

When a guy is about to nut and you can see the cum at the tip.

Jim: "I as fucking your mom last night and she told me I had a nice light post."
Me: "Same."

Light Post by Jpm26 September 7, 2016

lightpost 

A post that holds a light.

The lightpost assaulted me in the streets!

lightpost by Sean October 29, 2003