Before you can go down the rabbit hole, the pill needs to go down your mouth hole.

Morpheus: No one can be told what the matrix is, Neo. You must see it for yourself. Take the blue pill and the story ends, take the red pill and I show you how deep the rabbit hole goes. … Are you ok?
Neo: It’s pretty hard to swallow.
Morpheus: I know it is difficult to believe.
Neo: No, I meant the pill it’s pretty big.

Neo: Do you have like a chewable maybe?
Morpheus: It is a bio-electric tracking device, it doesn’t come in chewables, so swallow.

Trinity: Let’s give him the suppository.
Neo: Ok, taking it.
Morpheus: Open your mouth, open… That wasn’t so hard now was it?
Neo: (shaking head) nhhh nhhh
Morpheus: Do you believe in fate, Neo?
Neo: (Obviously hiding something under his tongue) I’m in control of my own destiny.
Morpheus: God (censored) it!

source: collegehumor.com