Can-Trick 

The Can-Trick is a method of determining if/when lunch has arrived for the day(at lunch-sponsored firms). An employee will walk with an empty soda can to their company's lunch room to see if lunch has arrived for the day. Using an empty soda can increases the odds exponentially that lunch will actually be there when the attempt is made.

It is 11:30am. I am hungry so I will be attempting the 'Can-Trick' to see if lunch is here. Since I am performing the Can-Trick, lunch is more likely to have arrived.

Can-Trick by mFam November 17, 2006

Condom on his dick but he can't do the trick 

During sex he had a condom on his dick but he could not make his girlfriend cum.

Her ex-boyfriend had a condom on his dick but he can't do the trick when they have sex.

Condom on his dick but he can't do the trick by Emo_Girl_98 November 22, 2021

you can't teach an old dog new tricks 

It means that it is very hard to change someones habits

You can't teach an old dog new tricks when they have been used to using a cell phone instead of a smart phone.

you can't teach an old dog new tricks by Zahraa June 13, 2017

thick like a tuna can 

Description applied to a penis when it is wider than it is long (often used where it is implied that girth trumps length in ability to please a woman).

I may not have the longest dick in the world, but I'm thick like a tuna can.

thick like a tuna can by Plebescite September 3, 2003

You Can't Teach An Old Frog New Tricks

The full title of one of the most annoying Chips Challenge levels ever, featured in CCLP3.

Crap, You Can't Teach An Old Frog New Tricks is so damn hard!

You Can't Teach An Old Frog New Tricks by mypseudoonym... February 6, 2012