While it is theoretically possible to put a mosquito in your mouth and bite down on it, it is highly unadvisable and unsanitary. Mosquitoes are known carriers of various diseases including malaria, dengue fever, Zika virus, and West Nile virus, among others. When they feed on blood, they can pick up these diseases from infected individuals and transmit them to others. So, biting a mosquito could potentially expose you to these diseases.