Combination of "handjob" and "Yeti" (Yeti is another name for the Abonimable Snowman who is an ape-like creature who is said to live in the mountains).

The Hand of Yeti is a handjob by someone with ice cold hands.

She gave me the Hand of Yeti. Brrr!
The Hand of Yeti causeth me to go brrrrrrr
by Ae5Ea8 July 5, 2016
Get the the Hand of Yeti mug.