promisem......Been married 30 years? I'd say your wife is well-over due to call you (endearingly w/ a smile) anything at all!! Most long term marriages have an enormous collection of "private and/or personally significant" little secrets with meaning and intention all quite benevolent.
A 30 year marriage and still loving each other and communicating is something to be proud of and proves above all else that you BOTH have a sense of humor.
My sweet Daughter-in-law & devoted husband (yes, MY son) will soon celebrate their 25th Anniversary. I should add they were HS sweethearts, so add another 3 years together, They have 2 adult children and 2 in elementary school. NO ONE but them knows WHY they started another family all over again. LOL....They're happy and quite a TEAM. I can't even repeat here some of the pet names they have for one another.....but I can tell you that after all these years of hearing my son's incredibly twisted sense of humor, she STILL laughs long & hard and then rolls her eyes and says, "OMG, he's such an A$$!"
That actually makes my son PROUD!! LOL
Congratulations on 30 years and trust me, "turd" is not so bad.....especially if she's smiling. You look pretty happy!....