Here is the full list of all 40 Poop Clicker achievements.
50000000000 per second
10000000000000 per second
Have 1 Cookie
Have 1 Death star
Have 1 Poison
Have 1 Atom
1500000 per second
Have 1 Donut
500000 per second
Have 1 Luck
Have 1 Laxative
Have 1 Brainstorming
15000 per second
Have 1 Bot
5000 per second
Have 1 Sharingan
Have 1 Friend's help
1000 per second
Have 1 Potato
300 poop per second just from unicorn
500 per second
Unicorn upgrade
150 poop per second just from Red plunger
Red plunger upgrade
100 poop per second just from corn
Corn upgrade
Have 1 Unicorn
40 poop per second just from Hot pepper
make 100 poop per second
Have 1 Plunger
20 poop per second just from nfs
Hot pepper upgrade
Have 1 Corn
0 poop per second just from quick tap
Have 1 Hot pepper
Need for speed upgrade
Quick tap upgrade
Have 1 NFS
Have 1 Quick tap
Your first poop