Ryan Phillippe tweets vintage photo of Breckin Meyer

Carly Maga

Long before the word “bromance” was a thing, Ryan Phillippe and Breckin Meyer were teen buddies. And when Meyer turned 39 years old on Tuesday, Phillippe sent out messages of love to his friend.

“A huge happy bday to @breckinmeyer. I been knowin' this fool for twenty years. Send him wishes please,” he tweeted, and added “Look at yo young "Clueless" ass @breckinmeyer” with a photo of a 20-something Meyer in 1995’s “Clueless.”

Meyer took his birthday in stride.

“So many things I wish I could warn him about.”

and tweeted out on Wednesday morning “Many thanx for the bday love! Now get off my lawn, turn down that hippity hoppin music cuz my hip hurts and in my day clouds cost a nickel!”

Phillippe and Meyer rose to fame in the '90s -- the former as the star of “Cruel Intentions” and “I Know What You Did Last Summer,” and the latter as loveable stoner Travis in “Clueless” and the lead singer of Loveburger in “Can’t Hardly Wait.”

Phillippe followed up his break in teenage flicks with a few critically-praised films like “Flags of our Fathers,” “Gosford Park,” and 2005’s “Crash.” Since then, he has since appeared on the TV show “Damages” as “a Julian Assange-type character.” He’ll soon make his directorial debut in “Shreveport,” in which he also stars as a kidnapped movie star. He and Meyer have taken on producer roles as well in their production company Lucid Films (co-owned by Seth Green and David E. Siegal).

Since divorcing his “Cruel Intentions” costar Reese Witherspoon, Phillippe has been linked to actresses Abbie Cornish and Alexis Knapp. He’s currently dating model and law student Paulina Slagter. Meanwhile, the rest of us can usually rely on a dose of Phillippe charm at his son Deacon’s soccer and football games.

Meyer was able to turn his sidekick roles into leading men in “Road Trip,” “Rat Race” and “Garfield” – though, none of those were exactly Oscar winners (his Twitter bio reads “Hi Twitter. I'm Breckin. Um...sorry about that whole Garfield thing”).

He’s also found success in writing on “Robot Chicken” (with friend Seth Green) and in music, playing drums for Tom Morello's The Nightwatchman, Ben Harper, Slash, and Cypress Hill. Currently, he’s starring on “Franklin & Bash” with another '90s heartthrob, Mark Paul Gosselaar (a.k.a. Zack from “Saved By the Bell”)

Meyer married to Debroah Kaplan in 2001, and had a daughter together in 2003. However, they filed for divorce in October 2012.

It looks like these two friends managed to make the tricky transition from '90s hunks to solid entertainment pros.