the act of loving oneself (see wanking) in order to put off a more valuable task, because the long term value of this task is clouded by the short-term desire to love oneself
On a Sunday morning Pete knows that he should go to the library, but he prefers to stay home and have a tam shank
by Bard Lucy Hume XI May 11, 2006
1 more definition
The glorious act of receiving oral sex whilst simultaneously taking a dump.
For his birthday, Zak asked his GF for a Tamshank, he had always wanted one but never had enough courage to ask her. She agreed as long as he returned the favour.
by Big Aund January 06, 2012