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(n.) A two person outing in which one party is unaware that the outing is a date until it is in progress.
He said we were just going to grab coffee and study for finance but when I arrived and saw him overdressed and drenched in cologne I became painfully aware it was a sneak date!
by RhetoricalRed September 12, 2009
to date someone behind someone else's back after making a promise neither of you would date them.

Said on JONAS, the T.V. show starring the Jonas Brothers.
"Looks to me like we're all trying to sneakdate Maria." - Nick Jonas, as said by on JONAS.
by honestdater May 31, 2009