Wilf

To wilf someone, to be friend them gain intimate knowledge of a friendship or relationship a person has and then to use information garnered to steal wife/gf/bf.

One man to another "his misses is fit id definitely wilf him"

Wilf

It is an everything word that can be used it any context. Its normally used a compliment such as "Wow, you're so wilf." Its can also be used a noun, adjective, verb, or anything else.

"I'm literally wilfing right now."
"Oh, he's a little bit too wilf."
"Stop wilfing on me."
"Shes doing that task wilfly."