As nouns the difference between pullup and pullin
is that pullup is an exercise done for strengthening the arms and upper body, in which one lifts one's own weight while hanging from a bar while pullin is (obsolete) poultry.
pullup
English
Alternative forms
*pull-up
Noun
(
en noun)
An exercise done for strengthening the arms and upper body, in which one lifts one's own weight while hanging from a bar.
pullin
English
References
* 1949', John Dover Wilson (compiler), ' Life in Shakespeare's England. A Book of Elizabethan Prose , Cambridge at the University Press. 1st ed. 1911, 2nd ed. 1913, 8th reprint. In Glossary and Notes