When pouring a drink (generally shots), and the consumer of the said drink doesn't want a full shot, but a little more than half, he or she would ask for generous halvises.
"Don't give me a full shot, just give me half!"
"Bitch, you're taking a generous halvsies shot!"
The Urban Dictionary Mug
One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.
Buy the mug