Note 727 — A Ryght Pithy, Pleasaunt and merie Comedie: Intytuled Gammer gurtons Nedle: Played on Stage, not longe ago in Christes Colledge in Cambridge
Reading edition
This is said to Scapethryft, who is nowhere mentioned in the text. 'Fellow' (equivalent to 'comrade') was originally a courteous mode of addressing a servant, like the French mon ami.