When a straight heterosexual male accidentally sticks his thumb up another man's rectum, purely by mistake. Usually occurs in male community showers at gyms or prisons/correctional facilities and dark rooms.
As I entered the dark room, I slipped and fell on Greg's bed, accidentally giving him a wilbert.

As the doctor was checking my cheeks, he accidentally gave me a wilbert.
by Jim Bobbbb May 5, 2008
Get the wilbert mug.
Failing and disappointing everyone in last possible moment while trying to get a world record on D14-Endurance.
He is on wr pace, but he is going to pull a wilbert.
by hdfin3rq February 26, 2021
Get the pull a wilbert mug.
Fingering a girl and then giving her a wet willy using the wetness from her own vagina.
my girlfriend and I were doing a little foreplay last night, but she was being a total bitch earlier that day, so I gave her a Wet Wilbert.
by EazyBreazy April 17, 2011
Get the Wet Wilbert mug.
Wilbert Ross (Hashtag Wilbert), is a Filipino singer, songwriter, dancer, actor and host. He is one of members of the dance group Hashtags on the noontime variety show It's Showtime.
I will support Wilbert Ross
by Sbxxxxxssor September 7, 2021
Get the Wilbert Ross mug.
A BEAST IN THE SHEETS IF YOU EVER SLEEP WITH HIM YOU WILL NEVER GO TO ANOTHER MAN.HE IS THE DEFENITION OF ALPHA MALE.
Once you go Wilbert you never go back
by November 22, 2021
Get the Wilbert mug.
It's basically a wet willy but with a dry finger!
Babe? Can I give you a Dry Wilbert?

What the f___ is that? Here I'll show you...(stick rough dry finger tip, deep into ear hole!) Like that... Hahaha!
by Ritequik 805 March 20, 2023
Get the Dry Wilbert mug.