Top definition
If someone is said to have a spanner face, normally a man saying this about a woman it means she has the kind of face that's causes his nuts to tighten..

Spanner..... Face... Get it? Basically you're hot and you turn them on ;)
"Woah look at that girl she's a total Spannerface!"

- "what she has a face like a spanner?"
"No mate! Her face is so hot my nuts are tightening."
-"Oh! Cos spanners tighten nuts!! Ha good one!"

--- Classic example :D ---
by benfranklyn July 17, 2013
Happy St. Patties Day!