Onanizer is a grindcore band from Czech Republic playing since 1996. Although the band's name could evoke goregrind feel, they are more influenced by old school grindcore, noisy hardcore/punk, fastcore and powerviolence. The band is recently known for huge touring all over the world after establishing today's line-up based in Prague in February 2008. Apr, 9th - May, 3rd 2008 mostly the west part of Europe was conquered together with another Czechs Empty Feeling including Czech Republic