The post featured a signed posted from the hit 1995 movie and an explanation.
"I'm told that today is the 20th anniversary of Tommyboy," he wrote. "Aside from that making me older than f--- I have to say thanks to everyone who has said nice things to me over the years. I was very lucky to be in this movie with one of the all time funniest mother f------ the late great chris farley."
Spade, 50, continued, "Its hard to read but on the poster it says, 'David lets stick together!' Signed by chris. We gave each other autographed posters as a joke back then. Now I see it in my office and skim over it because if I think about that for more than 5 seconds ill start bawling. Like now. As chris would say. What a p----. ?#?RIP?."