be all thumbs

To be uncoordinated or clumsy with one's hands. My mother does beautiful calligraphy, but I'm all thumbs—I can barely hold the pen!

Name	Pronounced	Usage
Loup	-	French
Lycurgus	-	Greek Mythology (Latinized), Ancient Greek (Latinized)
Lykos	-	Greek Mythology, Ancient Greek
Minerva	[mi'nə:və]
Michelangela	-	Italian
Mattin	-	Basque