Have you ever said something stupid and couldn't correct it?

Twenty years ago, my friend since childhood and his wife and kids were at my place for a barbecue.  He convinced me to sign up for farcebook.  With his family and mine watching I saw a girl I knew in school.  I blurted out "I remember her, she was incredibly tight!".  My buddy hooted loudly and said "TOM, YOU DOG!".  His wife, and our young kids were shocked.  My wife relegated me to the doghouse for a couple days. 
I tried to explain that it came out wrong, I meant she was very trim and tight looking.  Nobody would believe my clarification.  Part of my buddy's YOU DOG comment was we both knew her and she was a very devout christian that was unapproachable in a sexual fashion.