No it is not. If you are referring to the episode where Tobi was with Didara in the dango shop when he said "Ichibi, Nibi, Tobi!" then no it was just Tobi being stupid.
Toklo's brother's name is Tobi.
Shippuden Episode 112
I am positive it is Tobi
His last name is Uchiha because Tobi is really Madara.
Tobi is actually Uchiha Madara.
Tobi Atkins's birth name is Tobias Stuart Atkins.
Tobi Wurth's birth name is Gustavo Adolfo Wurth.
yep! because Tobi has mangekyou sharingan. and it is said that Tobi controlled the nine tailed beast when it first attacked konohagakure. he controlled the kyuubi but unfortunately, the 4th hokage, Minato Namikaze, sealed the beast in naruto's body. by: deo bautista ^^, He even used 9 taild fox on the fight with first hokage.
It is Uchiha, not uchia. Apparently, no Madara is not Tobi, Tobi just took Madara's name.
Naruto Shippuden Episode 99: Raging-Tailed Beast.
Jacqueline
i think Tobi/Kagami Uchiha Killed him when tobi created a space time jutsu then took the name Tobi from his Sensi