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
Have 1 Luck
500000 per second
Have 1 Laxative
Have 1 Brainstorming
Have 1 Bot
15000 per second
5000 per second
Have 1 Sharingan
150 poop per second just from Red plunger
300 poop per second just from unicorn
Unicorn upgrade
Have 1 Friend's help
1000 per second
Have 1 Potato
100 poop per second just from corn
500 per second
Red plunger upgrade
Corn upgrade
40 poop per second just from Hot pepper
20 poop per second just from nfs
Have 1 Unicorn
make 100 poop per second
Have 1 Corn
Have 1 Plunger
Hot pepper upgrade
0 poop per second just from quick tap
Have 1 Hot pepper
Need for speed upgrade
Have 1 NFS
Quick tap upgrade
Have 1 Quick tap
Your first poop