Life's work. Lifetime achievement. Worthy of mention on a tombstone. A source of pride and contentment in one's final hour. Rhymes with "boom's tonic".
"It's a good job, but I can't make a difference in the world that anyone will care about. Nothing I'll do there will ever be tombstonic."
by Bob Stein February 7, 2010
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A fart that is buried in the coushin of a couch or chair, to avoid the existance. The fart will resurface later when the assailant leaves the room.
Awe, damn! Don't tombstone on my couch, man!
by Nomad008 October 28, 2005
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A sex position that starts with a man and woman in the stand up sixty nine position. Right as you cum in the woman's mouth you yell out tombstone and pile drive them into the ground and break their neck.
Hey Dylan did you just see me just tombstone that girl?
Yeah dude, but I think you broke her neck.
She'll be fine, besides it was still great sex.
by Cyrus Knows February 3, 2016
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69ing in the position of the Undertaker's finishing move. The tombstoner holds the tombstonee upsided down while they 69. Its an extremely rough and involes smashing the tombstonee's head into the ground or into a toilet. You need some real birds to be able to tombstone with someone
Colin: Dude me and this fat brotislavian girl were tombstoning last night.

Me: I hope she gave u herpes
by Ekaj June 12, 2008
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When two people (males preferably) have oral sex simultaneously whilst in a standing 69 position.
I walked into the kitchen lastnight and caught to of my housemates "tombstoning"
by BSE123 February 10, 2018
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An activity whereby you see how far you can let a ‘stoolslip out and still be able to suck it back in.
"General! Sir! Tombstoning complete. I just successfully retracted 2 inches of loaf."

or

"Your Excellency has the air of a man mid-tombstoning."
by Bontempi June 27, 2007
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Tombstoning - A sexual act where you submerge your lover in ice cold water for a time and then make love to her cold stiff body. Great for the necrophiliacs amoung us :)
by Necros are us May 30, 2012
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