thumb-handle 

When a man attempts to put his hand down his lady friends skimpies and is stopped by her pulling his hand away, while using his thumb like a handle.

"Oh geez, Angela just thumb-handled me".

thumb-handle by LL-Unit November 24, 2010

Left-handed Thumbs Up 

A thumbs up acknowledgement done specifically by the left hand when a left-hander does anything left-handed and does it very well

When left-handed golfer Bubba Watson made a 75 foot chip shot directly into the cup, left-handed fans gave him the left-handed thumbs up in appreciation of the shot.

Left-handed Thumbs Up by Lhander April 26, 2015