Putting a chamber pot beside my head he farted.The main verb (πέρδεται) is in the present tense.
πρὸς τῇ κεφαλῇ μου λάσανα καταθεὶς πέρδεται.
On the supposed etymological connection between Greek λάσανα and Italian lasagna see B.L. Ullman, "Horace Serm. I.6.115 and the History of the Word Laganum," Classical Philology 7.4 (October, 1912) 442-449, rejected by Anthony F. Buccini, "Lasagna: A Layered History," in Wrapped & Stuffed Foods: Proceedings of the Oxford Symposium on Food and Cookery 2012 (Totnes: Prospects Books, 2013), pp. 94-104.
On this fragment see Eduardo Urios-Aparisi, The Fragments of Pherecrates (diss. University of Glasgow, 1992), pp. 287-288.