Monday, n. — Green’s Dictionary of Slang

Monday n.

SE in slang uses

In derivatives

Mondayish (adj.) (also Mondayfied)

disinclined to work, esp. after a festive weekend.

1873

Sl. Dict. 227: Mondayish, or Mondayfied disinclined for work. ‘St. Monday’ is a great institution among artizans and small tradesmen.

In compounds

Monday mouse (n.) [mouse n. (3)]

a black eye, resulting from a Saturday or Sunday night (drunken) fight.

1909

J. Ware Passing Eng. of the Victorian Era.

In phrases

blue Monday (n.)

see separate entry.

crib-crust Monday (n.) [? crib v.¹ + SE crust; one has no money for food and must scrounge crusts]

(UK juv.) the Monday before Advent.

1860

Hotten Dict. of Modern Sl. etc. (2nd edn).

Monday and Tuesday (adj.) [the correct order of the days of the week]

slow, steady, careful.

1959

E. De Roo Young Wolves 57: Play it cool, I hope. We got to be Monday and Tuesday, brother. It’s us against them downstairs, and what they don’t know won’t hurt ’em.

St Monday (n.)

see separate entry.