Here is the full list of all 50 My Name is Mayo achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Wear the bikini. (Hit this 50 times)
Hit 700 times!
Spin the yarn. (Hit this 50 times)
Hit 550 times!
Hit 500 times!
Hit 350 times!
Young soul. (Hit this 10 times)
Hit 200 times!
Amazing Story (150 hits)
Something important. (10 hits, follow the life)
A Story About Life. (120 hits)
I am Mayonnaise (90 hits)
This will cheer you up! (Hit Mayo 75 times)
Hit 50 times!
Hit 20 times!
Hit the Mayo 5 times!
Hit 1500 times!
Hit 3000 times!
Hit 5000 times!
Hit 8000 times!
Hit 10000 times!
Unlock all the achievements!
Keep wearing the leopard (Hit this 100 times)
Tap it wild and free. (Hit this 125 times)
Cool whip is sexy. (Hit this 200 times)
Banana? (Hit this 300 times)
Starchy fashion. (Hit this 200 times)
Red Mayonnaise. (Hit this 300 times)
Feline Ketchup. (Hit this 500 times)
Furry Rain. (Hit this 100 times)
Zzz... (Hit this 150 times)
Drop the bombshell! (Hit this 50 times)
Slap that cheese! (Hit this 250 times)
Drink coffee. (Hit this 150 times)
Screw that. (Hit this 300 times)
Flipped. (Hit this 500 times)
Like that old time Rock and Roll! (Hit this 50 times)
Daddy issues. (Hit this 100 times)
Old fashioned and boring. (Hit this 200 times)
It's not a phase, it's who I am! (Hit this 10 times)
Follow in his footsteps. (Hit this 100 times)
While my guitar gently weeps. (Hit this 300 times)
In the end... (Hit this 50 times)
The Box of Love. (10 hits, follow the life)
Just kidding... (10 hits, follow the life)
Move. (10 hits, follow the life)
Muscles. (10 hits, follow the life)
Part of life. (10 hits, follow the life)
Philosophy. (10 hits, follow the life)
Talking about life. (10 hits, follow the life)