to press sth / your body against sb/sth :
She flattened her nose against the window and looked in.
Greg flattened himself against the wall to let me pass.
to press sth / your body against sb/sth :
She flattened her nose against the window and looked in.
Greg flattened himself against the wall to let me pass.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005