Crowd; crowd on. To put pressure on, fill up, etc.
Not uncommon as a slang expression. Here are a few from J. E. Lighter, Historical Dictionary of American Slang.

1836, Weingartner "Slang Dictionary: To put the pressure on (someone or something)
1867, General Stuart- Crowd 'em with artillery.
1867, Mark Twain- She crowded Lewis until he swore.
1908, New Broadway- I crowded Guiseppi a little.... (to explain something to me)
1929, Hammett, Maltese Falcon- Don't crowd me.

To give forcibly:
1899, Ade, Fables- The Boss met her as she went out and crowded three dollars on her..
1912, N. Y. Tribune- To crowd the bases (baseball)

To crowd one's luck:
Runyon- I was wondering if I could crowd my luck....

Crowd the mourners
1841, To add to one's difficulties. Several quotations on this one.