When you expect worse than what actually happens. A pessimist's let down. Can cause happiness and joy, or the anger and frustration brought by a let down.
by aslan8 December 14, 2005
by domiyan November 28, 2012
An event in which a situation turns out much better than you expected it to, in contrast to a letdown which is the exact opposite.
We were letup last night when the bleacher tickets we thought we had bought for the basketball game were actually right down by the court.
by Jobo Gusso January 21, 2011