Under the circs, if you'd told him I was riding it might have been forty bob!
Don't think a chap's got any right to marry a girl under present circs.
Didn't care to go and see her—you know, under the circs—afraid of the old woman, who I didn't know was dead.
Can't blame him, if you come to think of it, for getting the wind up a bit in the circs.
A circumcision (1990s+)