bi once, cry often
Refers to where --- merely out of curiosity --- you initially dabble in same-gender romance on just a single occasion, but then all of da local drag queens and other gender-indefinite weirdos descend on you for "solace 'n' smooches".
Da first word in da term "bi once, cry often" can also be realistically altered to be spelled da same way as da original "purchase something of good quality and it will last a lifetime, and thus da only thing dat you will ever feel unhappy about regarding said item is its high price" ditty --- if you actually "take da moocher-enabler plunge" and BUY a single item for a budget-impaired individual, said favored spendthrift will immediately crow about his unexpected windfall to his fellow local deadbeat no-accounts, and then you'll soon have all of THEM swarming around you either looking for cash handouts or begging you to buy THEM desired objects, as well.