The Unh! Project: a collection of guttural moans from comics. Not only for comics readers, it is a very cool stuff and the analysis of some moans are almost bizarre, like the “sounds”. BTW, the meaning of Oooff! is:
Right… I’m beginning to get the impression, from panels like this, that it’s typical for women to run at 60 miles per hour through libraries, colliding at ridiculous angles.