Feb. 19 Loom Weaves Brasil's Carnaval Nomad Lounge, 1013 Jones St. 9 p.m., $5, 21+, 884.1231 brentcrampton.typepad.com Loom brings the dance to Nomad Lounge this Saturday for a Brazilian themed Carnaval celebration promising an "explosive cultural exploration." The famous holiday is in the same vein as Fat Tuesday — one last chance to party down before repenting ahead of Easter. This installment of the popular dance party promises spectacle and merriment right in step with the original, featuring live Afro-Latin percussion over samba, batucada, tropicale, baile funk and south-of-the-equator tracks spun by co-creator and Reader contributor Brent Crampton. Come decked in festive yellow and green, a la Brazil's flag, or other flashy, tropical flair. Order a caipirinha, Brazil's national cocktail made with cachaça sugar and lime, and let the swirling beats and sweaty dance floor transport you.