Its a meme.
http://knowyourmeme.com/memes/limes-guy-why-cant-i-hold-all-these-limes
"Why Can’t I Hold All These Limes? is an image macro series featuring a man attempting to carry several limes in his hands while they appear to be falling from his grasp. Derivatives often feature other characters failing to secure a variety of objects."
I hope someone here gets what the image above is referencing. Hint: Portals
Back on topic:
You can never have enough Quadras, or so I am told.
http://knowyourmeme.com/memes/limes-guy-why-cant-i-hold-all-these-limes
"Why Can’t I Hold All These Limes? is an image macro series featuring a man attempting to carry several limes in his hands while they appear to be falling from his grasp. Derivatives often feature other characters failing to secure a variety of objects."
I hope someone here gets what the image above is referencing. Hint: Portals
Back on topic:
You can never have enough Quadras, or so I am told.