Igama elithi "flaskful" alitholakali kuzichazamazwi ezijwayelekile, kodwa liyigama elihlanganisiwe elakhiwe "i-flask" kanye "nogcwala." "I-Flask" ngokuvamile ibhekisela esitsheni esincane esinentamo ewumngcingo, esetshenziselwa ukuthwala uketshezi, kuyilapho u-"-ful" yisijobelelo esisetshenziselwa ukukhombisa "ukugcwala" noma "inani eligcwalisayo." Ngakho-ke, elithi "flaskful" lingaqondwa njengokusho inani loketshezi olugcwalisa iflaski.