The phrase "withholding allowances" refers to the number of tax exemptions an individual claims on their W-4 form, which helps determine how much income tax is taken out of their paycheck. Full definition
Tax Myth: The number of withholding allowances on your W - 4 is the same as the number of exemptions you list on your tax return. (efile.com)
To address it, I've talked to some tax professionals and found out that I can bump my tax withholding allowances up to 2 or 3 (it is currently 0). (money.stackexchange.com)
You can also file a new W - 4 form with your employer to claim additional withholding allowances. (turbotax.intuit.com)