An allusion to the The Merchant of Venice by William Shakespeare. Shylock is Jewish, and his traditional cloak suffers for it:
Signior Antonio, many a time and oft
In the Rialto you have rated me
About my moneys and my usances:
Still have I borne it with a patient shrug,
For sufferance is the badge of all our tribe.
You call me misbeliever, cut-throat dog,
And spit upon my Jewish gaberdine,
And all for use of that which is mine own.
Act 1, Scene 3