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1.
quickly, with haste.

As created by Blackadder (Ink and Incapability)
I shall return interfrastically
by James January 26, 2004
 
2.
Coming back in your own time, 'whenever the bloody hell I like'.

Coined by E. Blackadder Esq., butler to the Prince Regent during the late 18th century, in a conversation with Dr Samuel Johnson.
"I shall return interfrastically."
by S. Baldrick May 14, 2012