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