Has anybody heard of a unit called snail?
Great explaination ogata, except for a small (but very important typo):
1 slug = lb-sec^2/ft
1 snail = lb-sec^2/in
[lb-sec^2/ft][ft/(12*in)] = lb-sec^2/in
[lb-sec^2/ft] = [lb-sec^2/in][12*in/ft]
1 slug = 12 snails
1 snail = 1/12 slugs
This is the reverse of what you have written (it only took 7 years for someone to catch this error).
It should also be noted that in some circles this unit is called a "blob". Aside form the typo, great reply!