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