"Women must write through their bodies, they must invent the inpregnable language that will wreck partitions, classes, and rhetorics, regulations and codes, they must submerge, cut through, get beyond the ultimate reserve-discourse..." (Cixous, H. The Laugh of the Medusa)
Cixous and Irigarary do not accept the very Western idea of a separation between mind and body - the mind being traditionally male, the body female. They are not saying that only women can write in this new, freer more physical language but that this is a more feminine way of writing.
I am currently reading a book of poetry called The Weight of Oranges by Anne Michaels - Michaels is a Canadian writer who started out as a poet but now writes mostly fiction. Her poetry is very sensual and to me embodies exactly the way of writing that Cixous is describing.
"By morning the stones we'd found
were dull with air,