Green’s Dictionary of Slang

o’river phr.

[play on Fr. au revoir, goodbye]

(US campus) a farewell, goodbye.

1991
19911992199319941995
1996
[US]Eble Campus Sl. Mar.
[US]Eble Sl. and Sociability 79: Au revoir ‘good-bye’ [inspires] o’river and Paul Revere.