As it turns out, Iloka's birthday was actually back in March.
The whole thing is a funny mix-up ... the Bengals tell TMZ Sports they simply had the wrong date marked in their calendar ... and they fixed it earlier today as soon as they realized the mistake.
The funny part ... George says he was a actually a little bit sad on his real birthday, March 31st, because he got NO birthday love from the team or the fans!!
"On my real birthday, no one tweeted me ... I said, 'Damn. No one likes me.' Now it all makes sense."
As you can imagine, Iloka was pretty confused when he saw several teammates and friends tweeting 'Happy B-Day!' to him.
Domata Peko (@DomataPeko) June 20, 2014
Happy Birthday brodie @George_iloka hope you have a great one ✊— Mohamed Sanu (@Mo_12_Sanu) June 20, 2014
@George_iloka happy bday brotha!— Shaun Pitbull Prater (@Shaun_Prater) June 20, 2014
Iloka was able to laugh it of though.
Who did this?? Y'all trippin lmaooo pic.twitter.com/OqJAzbjd06— George Iloka (@George_iloka) June 20, 2014
So I guess it's my birthday again y'all, turn up! Lol— George Iloka (@George_iloka) June 20, 2014
I'm out here aging in dog years lol— George Iloka (@George_iloka) June 20, 2014
Oh well. Good job. Good effort.
Happy fake birthday George!