shelf the idea
... but thankfully that idea was shelved

What is the meaning of 'shelf the idea'?
Could you give some more examples?

"The craziest idea Brian ever had was to row from Dover to Calais in a giant boat made of matchsticks. He actually got as far as constructing the 5ft (33) ___frame_____. It took nearly a month and 216,000 matchsticks to build, but thankfully that idea was shelved."

Question

shelf the idea
... but thankfully that idea was shelved

What is the meaning of 'shelf the idea'?
Could you give some more examples?

"The craziest idea Brian ever had was to row from Dover to Calais in a giant boat made of matchsticks. He actually got as far as constructing the 5ft (33) ___frame_____. It took nearly a month and 216,000 matchsticks to build, but thankfully that idea was shelved."

Answer

"to shelve" books [physical action of putting books on a shelf or on shelves - meaning #1 below]
"to shelve" a plan [metaphorical action of putting a plan on a shelf and taking no further action - meaning #2 below]

New Oxford American Dictionary
shelve | ʃɛlv |
verb [with object]
1 place or arrange (items, especially books) on a shelf: we had catalogued and shelved all the books shipped in that day.
2 decide not to proceed with (a project or plan), either temporarily or permanently: plans to reopen the school have been shelved.
3 fit with shelves: one whole long wall was shelved.

Answer

It means they decided not to carry out the plan. Imagine the idea is a physical thing and someone picks it up and puts it on a shelf where no one will look at it again.

Answer

It means the idea was discarded and won't be used :)