The idiom "in for a penny, in for a pound" means that if you have already committed to doing something, you might as well go all the way and do it completely, even if it involves more time, effort, or money than you originally planned.
For example, imagine you are planning to renovate your kitchen. You start by buying new cabinets, but then you realize that the countertops also need to be replaced. At this point, you might say "in for a penny, in for a pound" and decide to replace the countertops as well, even though it will cost more money.
Another example could be if you are already late for work, and then you realize that you forgot your phone at home. You might say "in for a penny, in for a pound" and decide to go back home to get your phone, even though it will make you even later for work.
Overall, this idiom is used to express the idea that if you have already started something, it's better to finish it completely, rather than stopping halfway through.
• I already bought one cupcake, so in for a penny, in for a pound - I'll get the whole box!
• My friend convinced me to sign up for a marathon and I'm not sure I can do it, but in for a penny, in for a pound - I'll start training and hope for the best.
• I've already missed two days of exercise this week, but in for a penny, in for a pound - I'll just workout for an extra hour tomorrow.
• I know it's risky to invest all my money in one stock, but in for a penny, in for a pound - I'm going to take the chance.
• I decided to start learning Mandarin, and now I'm struggling with the grammar - but in for a penny, in for a pound, I'll keep trying.
• I've already spent months researching and writing this book, so in for a penny, in for a pound - I'm going to publish it and see what happens.
• I have already taken a bite of the cake, so in for a penny, in for a pound, I might as well finish it.
• The CEO decided to take a bold move and acquire a company that was struggling, thinking that in for a penny, in for a pound, it could be turned around with the right leadership.
• The politician knew the risks of offending the powerful lobby group, but in for a penny, in for a pound, she continued to advocate for her policies.
• After running a half marathon, I thought, "in for a penny, in for a pound," and signed up for the full marathon.
• The company has invested a lot of money in the project, so in for a penny, in for a pound, they should make sure it is successful.
• My friend has already spent so much on the concert tickets, so in for a penny, in for a pound, she might as well buy the t-shirt too.