The phrase comes from Filipino Dota 2 casting, where casters Lon and Dunoo shouted it during a heated match, with lakad matatag meaning walk steadily in Tagalog and normalin referring to normal attacks. Valve later added the line as an in-game chat wheel sound, which helped it spread far beyond the original broadcast. Players spammed it in matches, streams and edits, and it became a lasting tribute to Dunoo and a shorthand for Filipino esports energy that still appears in meme soundboards today.