ROFL, deformation of из под стула (from under the chair), implying that the person writing fell of his chair from laughing. Form of praise for the comments or posts above.
*ржет испацтула* вопрос, конечно, интересный риторический!…
*ROFL* the question is of course interesting, rhetorical!…
(AlyonaSL @ diary.ru, 02/2009)