What is take a deuce?

The process of defication. See also gettin' grumpy.

After three burritos, a cup of coffee and a cigarette, I'll be taking a deuce for hours.

take a deuce - video

I was talking to sandi and getting real horny until she said she had to take a deuce.

After I eat a garbage plate from Wyatt's, I imagine it will be about time for me to take a deuce.