Till doomsday phrase informal
Forever.
She wants to put off till doomsday.
If he were Prime Minister, the recession would last till doomsday.
You can dig here till doomsday, but you will never find water.
Forever or eternally
1. Used to indicate something lasts forever
2. Said when you believe something will never happen
Extremely stupid
Did you follow his guide and take your mom's money? You are thick as mince.