Tennantism is a word coined by fans of the Scottishactor David Tennant on the david-tennant forums meaning the movement of having a reverence of/obsession with David Tennant.
'Have you heard about that Sisterhood of Tennantism? They're nutters.'
'Tennantism drove me to watch Casanova six hundred and seventy times.'
-noun
1. A member of the female gender.
2. The image of a woman on a bathroom stall sign who has had part of her dress scratched out, causing her bottom half to resemble a tent.
3. A male who exhibits feminine qualities.
4. A male who is whipped or takes orders from his significant other.
5. A gentleman with the unfortunate job of constructing/shipping tents.