DCHP-1 Online
Yankee leave Slang, Obs. 
leave taken secretly or without permission; French leave.
- 1853 When too late, he . . . found his best plan was to take a Yankee leave, and clear out, leaving his unfinished home as a legacy to his creditors.
- 1853 When too late, he . . . found his best plan was to take a Yankee leave, and clear out, leaving his unfinished home as a legacy to his creditors.