Trencher

1. One who trenches; esp., one who cuts or digs ditches.
2. A large wooden plate or platter, as for table use.
3. The table; hence, the pleasures of the table; food.
Trencher cap ,
the cap worn by studens at Oxford and Cambridge Universities, having a stiff, flat, square appendage at top. A similar cap used in the United States is called Oxford cap, mortar board, etc.
Trencher fly ,
a person who haunts the tables of others; a parasite.
Trencher friend ,
one who frequents the tables of others; a sponger.
Trencher mate ,
a table companion; a parasite; a trencher fly.