The answer's a lemon British old-fashioned informal
The lemon is the least valuable symbol that can be obtained by playing a fruit machine, so it is used to indicate something undesirable, unsatisfying, or disappointing.
This phrase is a derisive answer to an inappropriate, unreasonable, or stupid question
- Why do countries need armies? - The answer's a lemon.
What is your result for the final test? Here, the answer's a lemon.
This expression means anything.
1. If someone works his or her magic, he or she does something very well.
2. If something or someone works their magic, they use their unique talents, ability or charm to produce a good effect or a desired outcome.
I warned you in advance, especially about a negative consequence.
Used to indicate that what happend or will happen to one is completely deserved
The origin of this phrase is not clear. Some sources indicate that it was earliest used in the mid 19th century.