"Pootis" is a quote from the Heavy, from Valve's free-to-play Team Fortress 2 game. The original quote by said Heavy is "Put dispenser here". However, due to his accent, it appears to sound like he is saying "Pootis spencer here". Therefore, people have grabbed the word "Pootis" from this, thus creating an internet meme.
Meaning 1 : "Pootis" or "Pootus", ~noun, Phu-tos the meaning of life.
Meaning 2 : A Phrase removed from TF2's Put Dispenser Here. Used by the Heavy Weapons Guy of TF2
Example 1 :Scout: YoHeavy Heavy: What?
Scout: Define "Pootis"
Heavy: "Pootis" or "Pootus", ~noun, Phu-tos the meaning of life.
Example 2: Heavy : Put Dis/penser here.
The phonetic spelling of the way the "Heavy" character from Team Fortress 2 requests a dispenser, (an in-game item built by the Engineer character that gives health and ammo to nearby players), saying "Put dispenser here" though his accent makes it sound rather difficult